Best Rivets For Sheet Metal : 7 Types Rivets For Sheet Metal
- Author: Allen Zhao
- 20+ Years of Manufacturing
For most sheet metal joints, there are several types of rivets to choose from. There are seven common types, including solid rivets, tubular rivets, blind rivets, self-piercing rivets , high-strength structural rivets, lockbolts, and Speed Rivets.
These 7 types of rivets for sheet metal are used under different conditions. Selecting the best rivets for sheet metal depends on the sheet thickness, material, required joint strength, whether the back of the workpiece is accessible, production volume, and installation equipment.
Table of Contents
Why Are Rivets Used for Sheet Metal?
Rivets are frequently used in sheet metal joining, primarily because they can permanently join two or more layers of thin metal sheets without the need for threads or the heat generated by welding. When the back side is inaccessible, blind rivets are the most convenient option. They are particularly suitable for joining automotive sheet metal, HVAC ductwork, metal enclosures, equipment housings, truck bodies, and appliance casings.
- Suitable for thin-sheet connections: Sheet metal is relatively thin and not suitable for threading. Rivets clamp multiple layers of sheet metal together through deformation.
- Simple installation requirements: Solid rivets require installation from both sides of the workpiece, while blind rivets can be installed from just one side.
- Riveting does not produce a heat-affected zone: The riveting process relies on the mechanical deformation of the rivet to form the joint, eliminating the need to heat the connection area.
- Capable of joining different material combinations (metal sheet + plastic、 metal sheet + composite materials): Rivets are suitable for joining combinations such as aluminum, carbon steel, stainless steel, plastic, metal sheets, and composite materials.
- The riveting process is better suited for rapid and high-volume assembly: automated riveting equipment can be used to improve assembly efficiency.
7 Best Types of Rivets for Sheet Metal
1. Solid Rivets
Solid rivets have a simple structure, consisting of a solid shank and a rivet head. During installation, the rivet is inserted through a hole in the sheet metal, and the opposite end is then squeezed, hammered, or riveted to cause plastic deformation of the tail, forming a second rivet head that clamps the two pieces of material together.
The entire shank of a solid rivet is solid, making it suitable for permanent joints requiring high mechanical strength. It is ideal for applications in aircraft, ships, automobiles, and industrial machinery.
Suitable applications:
- High-strength sheet metal structures
- Joints where both sides of the workpiece are accessible
- Structures requiring high long-term joint reliability
- Applications in aircraft vehicles, and industrial machinery
2. Tubular Rivets
A tubular rivet consists of a hollow cylindrical body and a rivet head. A tubular rivet forms a tight connection by expanding the rivet head on the opposite side through hammering or mechanical pressure.
The shank of a tubular rivet has a hollow structure at the tail end. Compared to solid rivets, they require lower forming forces to complete the riveting process. They are better suited for thin sheet metal, electronic products, home appliances, and other components that do not need to bear heavy structural loads.
Suitable applications:
- Thin sheet metal
- Lightweight metal components
- Home appliances
- Electronic products
- Brackets and small components
3. Blind Rivets
In most general sheet metal fabrication applications, blind rivets are a very important type of rivet. Their most notable feature is that the installer only needs access to one side of the workpiece. They are particularly practical for products such as enclosures, piping, or enclosed structures.
During installation, the rivet is inserted into a hole in the material to be joined. The mandrel is then pulled through a rivet gun, causing the rivet body to deform on the back side of the sheet metal and clamp the sheets together. Once the preset conditions are met, the mandrel breaks off, completing the connection.
Blind rivets also have limitations. Standard blind rivets cannot meet the demands of high-strength applications. Structural blind rivets should be selected based on the specific needs of the project.
Suitable applications:
- Metal enclosures
- HVAC ductwork
- Electrical cabinets
- Metal housings
- Equipment panels
- Automotive and vehicle sheet metal
- Enclosed structures where access from the back is not possible
4. Self-Piercing Rivets
Self-piercing rivets are a very important mechanical fastening technology in automotive sheet metal manufacturing. Compared to standard blind rivets, SPRs do not require pre-drilled holes in the sheet metal. They are well-suited for automated, high-cycle production.
During installation, a punch presses the rivet into the upper sheet metal. After penetrating the upper material, the rivet expands within the lower sheet metal and forms a mechanical interlock with the assistance of the die.
It should be noted that installing SPR rivets requires specialized riveting equipment, punches, and dies matched to the sheet metal combination.
Suitable applications:
- Automotive bodies
- Aluminum alloy bodies
- Steel-aluminum composite panels
- Multi-layer thin sheets
- Automated sheet metal production lines
- High-volume manufacturing
5. High-Strength Structural Rivets
Structural Blind Rivets are the “structural-grade version” of standard blind rivets. They provide a high-strength connection when the back side is inaccessible. Not only can they be installed from one side, but they also offer fatigue resistance.
Structural Blind Rivets have higher costs and more demanding installation tool requirements than standard open-end blind rivets. Mechanical properties vary among different structural rivet types; selection should be based on specific data.
Suitable applications:
- Trucks and trailers
- Automotive structural components
- Industrial equipment
- Metal frames
- Large HVAC equipment
- Sheet metal structures requiring high tensile and shear strength
6. Lockbolts
A lockbolt consists of two parts: a pin and a collar. During installation, a specialized tool pulls the pin while simultaneously compressing the collar and locking it into the pin’s locking groove, thereby forming a permanent connection with high clamping force.
The main features of a lockbolt are its high clamping force and excellent vibration resistance, making it an ideal choice for applications subject to prolonged vibration
Suitable applications:
- Trucks
- Trailers
- Rail vehicles
- Heavy machinery
- Large metal frames
- Heavy-duty sheet metal structures
7. Speed Rivets
Speed Rivets are mechanized, automatically installed rivets. They require specialized fasteners, tools, and a feeding system. Installation is highly efficient.
Speed Rivets must be installed in conjunction with a dedicated Speed Fastening System. Multiple fasteners can be pre-loaded into the system or continuously supplied via an automatic feeder; after one riveting cycle is completed, the next fastener automatically advances to the front of the tool.
Suitable applications:
- Home appliances
- Electronic devices
- Small metal components
- Thin-sheet assemblies
- High-volume continuous assembly
- Production lines with very tight cycle times
Comparison of the 7 Types of Rivets for Sheet Metal
Solid rivets, tubular rivets, blind rivets, SPRs, high-strength structural blind rivets, Lockbolts, and Speed Rivets can all be used for sheet metal fastening, but they are designed for different purposes. Next, I’ll focus on comparing differences in installation space, joint load capacity, and production efficiency to help narrow down your product selection.
1. Installation Space: Is access to the back of the sheet metal possible?
When both sides of the workpiece are accessible, you can consider Solid Rivets,Tubular Rivets, and certain types of Lockbolts. These fastening methods generally require support, forming, or the installation of a retaining ring on the opposite side.
For situations where the back of the sheet metal is already enclosed—such as in enclosures, ductwork, or equipment housings—Blind Rivets are the optimal choice. This is because Blind Rivets allow for installation from a single side of the workpiece.
If you require higher structural strength in addition to single-sided installation, Structural Blind Rivets are your ideal choice.
2. Joining Strength: General Fastening or Structural Loading?
For general sheet metal fastening applications—such as enclosure housings, ductwork, and metal covers—selecting the appropriate size of blind rivets will meet standard fastening requirements.
For thin sheets, home appliances, or lightweight components, tubular rivets may be considered.
However, for load-bearing structures such as trucks, trailers, rail vehicles, and industrial equipment, joints may be subjected to significant tensile forces, shear forces, vibration, and impact over extended periods. Prioritize structural fastening solutions such as solid rivets, structural blind rivets, or lockbolts.
3. Installation Efficiency: General Assembly or High-Volume Production?
You need to consider production volume and installation speed when selecting the type of rivet.
- General sheet metal batch assembly → Blind Rivets
- Automated automotive sheet metal production → SPR
- Large numbers of repetitive rivet points requiring high continuous installation speed → Speed Rivets
| Rivet Type | Installation Features | Pre-Drilled Hole Required? | Typical Joint Capability | Installation Efficiency | Best Sheet Metal Applications | Main Limitations |
|---|---|---|---|---|---|---|
| Solid Rivets | Usually formed from one side while the opposite side is supported | Yes | Suitable for high-strength structural joints | Medium | Aircraft, vehicles, mechanical structures, and heavy-duty sheet metal | Usually requires access to both sides of the workpiece |
| Tubular Rivets | The hollow end is flared or expanded during installation | Yes | Mainly used for light- to medium-load joints | Relatively High | Thin sheet metal, appliances, electronic equipment, and small assemblies | Not a universal solution for all high-load structural joints |
| Blind Rivets | Installed by pulling the rivet from one side of the workpiece | Yes | Standard types are mainly used for general sheet metal joints | High | Enclosures, ductwork, electrical cabinets, and metal housings | Standard blind rivets cannot directly replace structural fasteners |
| SPR (Self-Piercing Rivets) | The rivet pierces the sheet and forms a mechanical interlock on the die side | Usually No | Can create high-strength thin-sheet joints | Very High | Automotive bodies, multi-layer sheets, and steel-aluminum assemblies | Requires dedicated equipment, dies, and process matching |
| Structural Blind Rivets | One-side installation; the mandrel usually incorporates a locking or retention design | Yes | High tensile and high shear structural joints | High | Trucks, trailers, industrial equipment, and load-bearing sheet metal | Tooling and fastener costs are usually higher than standard blind rivets |
| Lockbolts | A typical system uses a pin and collar that are mechanically locked together | Yes | Suitable for high-clamp-load and high-vibration structures | High | Trucks, rail vehicles, construction machinery, and heavy-duty structures | Typical two-piece designs usually require access to the collar side; blind versions also exist |
| Speed Rivets | Used with dedicated feeding and installation systems for continuous riveting | Usually Yes | Designed primarily for rapid assembly; strength depends on the specific fastener type | Very High | Appliances, electronics, electrical equipment, and high-volume light sheet metal production | Requires dedicated fasteners and installation systems |
Why Are Blind Rivets Best for Many Sheet Metal Applications?
- Easy Single-Side Installation
Installation can be completed from just one side. - Suitable for Thin Sheets
Sheet metal is typically thin and not suitable for threading. Blind rivets are a better fit because they clamp the sheet metal by deforming the rivet body. - High Installation Efficiency
The installation process for blind rivets is simple and requires minimal space. They are well-suited for use with automated riveting equipment, improving production efficiency. - Wide Variety of Types
Blind rivets are available in various designs to suit different sheet metal applications. - Can Join Different Materials
Blind rivet fastening relies primarily on mechanical interlocking and does not require the two materials to have good weldability, as is the case with traditional welding. - Covers Applications Ranging from General to Structural Joining
Standard blind rivets can be used for general sheet metal joining. For higher-load applications such as trucks, trailers, and industrial equipment, structural blind rivets are also available.
Types of Blind Rivets for Sheet Metal
There are many types of blind rivets suitable for sheet metal fastening. While their installation principles are the same, they differ in grip range, head size, sealing performance, joint strength, and back-side forming method.
| Blind Rivet Type | Main Features | Best Sheet Metal Applications |
|---|---|---|
| Open-End Blind Rivet | Simple structure, wide range of applications, and relatively low cost | Enclosures, metal housings, ductwork, and general thin sheet metal connections |
| Closed-End Blind Rivet | The rivet body is closed at the end, helping improve sealing performance at the joint | Outdoor enclosures, roofing, HVAC systems, and sheet metal applications requiring improved water and dust resistance |
| Multi-Grip Blind Rivet | One rivet size can cover a wider range of total material thicknesses | Sheet metal assemblies with varying material thicknesses and high-volume assembly |
| Large-Flange Blind Rivet | A larger rivet head provides a wider bearing area and helps distribute load over the sheet surface | Thin sheet metal, aluminum sheets, soft materials, oversized holes, or areas with weaker hole edges |
| Countersunk Blind Rivet | The rivet head can sit flush or nearly flush with the sheet surface after installation | Equipment panels, metal furniture, and sheet metal applications requiring a flat surface |
| Peel Type Blind Rivet | The tail expands during installation to create a larger bearing area on the blind side | Connecting thin sheet metal with plastics, composite materials, or other soft materials |
| Structural Blind Rivet | Generally provides higher strength than standard blind rivets, with greater emphasis on tensile strength, shear strength, and mandrel retention | Trucks, trailers, industrial equipment, and load-bearing sheet metal structures |
How to Choose the Right Blind Rivet for Sheet Metal
When selecting blind rivets for sheet metal, many people consider only the rivet’s diameter or length. In actual assembly, this can lead to numerous riveting issues. You should follow the steps below to comprehensively evaluate the total sheet thickness, material, hole diameter, joint strength, rivet type, head style, and operating environment to select the correct blind rivets.
Step 1. determine the total thickness of the sheet metal
You should select a rivet whose grip range covers the combined thickness of all the sheets being joined.
Many customers select specifications based solely on rivet length, but what truly determines whether a rivet can grip the sheet metal properly is the grip range provided by the manufacturer.
Step 2. Select the appropriate rivet diameter
The rivet diameter directly affects the joint’s load-bearing capacity. You should select the diameter based on the actual tensile and shear strength required for the joint.
Based on my years of experience with sheet metal riveting projects, a thicker rivet does not necessarily result in a stronger joint. If you use a larger rivet, you’ll need to machine a larger installation hole. This increases the risk of localized deformation in thin sheets and places greater load requirements on the hole edges.
Step 3. Match the Rivet Material to the Sheet Metal Material
Common blind rivet materials include aluminum, steel, and stainless steel. When selecting a rivet material, consider both the strength of the joint and the risk of galvanic corrosion.
Step 4. Select the Blind Rivet Type Based on Actual Requirements
Choose different types of blind rivets based on the specific needs of the connection location.
Step 5. Select the Appropriate Rivet Head Type Based on the Sheet Metal
The rivet head is directly riveted to the workpiece surface; you must select the head type based on the sheet metal conditions.
Dome Head is suitable for most general sheet metal joints. Large Flange Head has a larger surface area, which helps distribute localized loads. Countersunk Head is suitable for applications requiring the rivet to be flush with or nearly flush with the sheet metal surface after installation.
Tips:It is particularly important to note that very thin sheet metal may not be suitable for countersunk rivets. This is because the sheet metal must be thick enough to form a suitable countersunk hole; otherwise, the area around the hole edges may be weakened, potentially causing the rivet to tear through the sheet metal after installation.
Step 6. Check the Mounting Hole Diameter
The hole diameter must be machined according to the Recommended Hole Diameter provided by the specific rivet manufacturer.
In actual sheet metal riveting, if the hole is too small, the rivet may not insert properly. If the hole is too large, it may affect hole filling, joint stability, and the stress distribution after riveting.
Step 7. Check the Tensile and Shear Strengths the Joint Can Withstand
In practical engineering applications, both types of loads are often present; therefore, the safety of the connection cannot be determined solely based on the rivet’s diameter. You need to further review the specific model’s tensile strength and shear strength values.
Step 8. Consider the operating environment
For outdoor, coastal, or humid environments, special consideration must be given to the rivet material and surface treatment. If the connection location also requires protection against rain or dust, closed-end blind rivets with a sealed design should be selected.
How to Choose Rivet Materials for Sheet Metal
When selecting rivets for common sheet metal applications, material is also a key factor to consider. It affects the joint’s strength, corrosion resistance, overall weight, and long-term reliability.
| Sheet Metal Material / Application Condition | Recommended Rivet Material | Main Reasons |
|---|---|---|
| Aluminum Sheet | Aluminum Rivet | Lightweight and generally provides good material compatibility with aluminum sheet. |
| Steel Sheet | Steel Rivet | Suitable for general steel sheet metal connections and provides a good balance between strength and cost. |
| Stainless Steel Sheet | Stainless Steel Rivet | Better suited for stainless steel structures where corrosion resistance is important. |
| General Indoor Sheet Metal | Aluminum or Steel, Depending on Load Requirements | Indoor environments generally have relatively low corrosion resistance requirements. |
| Outdoor or Humid Environment | Stainless Steel or Rivets with Suitable Protective Coatings | Greater emphasis should be placed on long-term corrosion resistance. |
| Dissimilar Metal Combinations | Material Compatibility Must Be Evaluated Individually | Galvanic corrosion risk between different metals must be considered. |
Best Rivets for Common Sheet Metal Applications
| Common Sheet Metal Applications | Recommended Rivet | Main Reason |
|---|---|---|
| Aircraft & High-Strength Structures | Solid Rivets | Suitable for structures with two-side access that require reliable permanent joints. |
| Appliances & Light Assemblies | Tubular Rivets | The hollow tail is relatively easy to form, making it suitable for light- or medium-load assemblies. |
| Metal Enclosures & HVAC | Blind Rivets | Can be installed from one side of the workpiece, making them especially suitable when the back side of the sheet metal is inaccessible. |
| Automotive Body | SPR (Self-Piercing Rivets) | Usually requires no pre-drilled hole and is suitable for automated assembly, multi-layer sheet metal, and multi-material connections. |
| Truck & Trailer | Structural Blind Rivets | Provides one-side installation while offering higher tensile, shear, and structural joint performance. |
| Railway & Heavy Equipment | Lockbolts | Provides high clamping force and good vibration resistance, making it suitable for heavy-duty structural joints. |
| High-Volume Assembly | Speed Rivets | Can be used with continuous feeding systems to improve the efficiency of repetitive riveting operations. |
Rivets for HVAC Ductwork and Equipment Housings
Blind rivets are the most practical choice for fastening HVAC ductwork, ventilation equipment housings, air handling unit panels, or metal enclosures. The main reason is that these components are typically made of thin steel sheet, galvanized steel sheet, aluminum sheet, or stainless steel sheet, and in most cases, access is limited to one side after assembly.
HVAC ducts and equipment housings have different requirements for blind rivets. You should select the appropriate blind rivets based on sheet thickness, sealing requirements, vibration, variations in sheet thickness, and the operating environment.
| HVAC Application | Recommended Rivet | Main Reason |
|---|---|---|
| General HVAC Ductwork | Open-End Blind Rivet | Relatively low cost, fast installation, and suitable for general thin sheet metal fastening. |
| Ductwork Assemblies with Varying Thicknesses | Multi-Grip Blind Rivet | One rivet size can cover a wider grip range. |
| Outdoor HVAC Equipment | Closed-End Blind Rivet | Helps reduce the possibility of water passing through the rivet body into the joint. |
| Very Thin Metal Panels | Large-Flange Blind Rivet | The larger head helps distribute the load over a wider area of the sheet metal. |
| HVAC Equipment Housings | Open-End / Multi-Grip Blind Rivet | Convenient one-side installation, making it suitable for enclosures and panel assembly. |
| Higher-Load or High-Vibration Locations | Structural Blind Rivet | Better suited for locations requiring higher tensile strength, shear strength, and joint reliability. |
Rivets for Electrical Cabinets and Enclosures
When connecting metal plates in electronic components, the customer encountered an issue where standard open-end rivets failed to fully penetrate the insulating coating on the workpiece surface. After analysis, Rivmate resolved the problem of unstable conductivity by using grooved blind rivets, which increased the degree of rivet body expansion. Click here for details on this case study.
If you are assembling electrical cabinets or metal enclosures, blind rivets are the most common choice. Blind rivets come in a wide variety of types to accommodate different strength requirements, sheet thicknesses, sealing needs, and corrosion resistance.
| Electrical Cabinet Application | Recommended Rivet | Why |
|---|---|---|
| General Cabinet Side and Back Panels | Open End Blind Rivet | Convenient one side installation and suitable for general thin sheet metal fastening. |
| Cabinet Components with Different Thicknesses | Multi Grip Blind Rivet | A wider grip range can cover more combinations of total material thickness. |
| Very Thin Metal Panels | Large Flange Blind Rivet | The larger head area helps distribute the load and reduces the risk of thin sheet deformation and pull through. |
| Outdoor Electrical Enclosures | Closed End Blind Rivet | Helps improve sealing performance around the riveted connection. |
| Equipment Cabinets with Noticeable Vibration | Structural Blind Rivet | Better suited for locations requiring higher tensile strength shear strength and joint reliability. |
| Applications Requiring a Flush Surface | Countersunk Blind Rivet | Can provide a flush or nearly flush surface but the sheet metal must be suitable for proper countersinking. |
Rivets for Automotive Body Panels
When selecting rivets suitable for automotive body panels, you need to distinguish between two scenarios: original equipment manufacturing and aftermarket body repair. The riveting methods used in these two scenarios differ, and so do the rivets selected.
| Automotive Body Panel Application | Recommended Rivet | Why |
|---|---|---|
| OEM Multi Layer Sheet Metal Joints | SPR Self Piercing Rivet | Usually requires no pre drilled hole and is well suited for automated sheet metal assembly. |
| Aluminum Body Components | SPR or Validated Structural Rivet | Can be used for selected multi material joints where conventional spot welding may not be suitable. |
| Repair Locations with One Side Access Only | Structural Blind Rivet | Can be installed from one side while providing higher structural joint performance. |
| General Non Structural Interior or Cover Panels | Blind Rivet | Simple to install and suitable for general thin sheet metal fastening. |
| High Load Body Structure Joints | Follow Vehicle Manufacturer Specifications | Suitability cannot be determined only by rivet diameter or external appearance. |
Rivets for Trucks and Trailers
When connecting steel structural components in truck cargo beds, Rivmate solved the problem of dents in the steel components caused by the use of Type B Haima rivets. Click here for more information.
Trucks and trailers are subjected to prolonged vibration, impact, body torsion, and cyclic loads while in operation. When selecting rivets, it is essential not only to consider their strength but also to determine whether the connection point involves standard outer panel fastening or a load-bearing structural joint.
In the actual manufacturing of trucks and trailers, blind rivets, structural blind rivets, high-speed blind riveting, and lockbolts are all used, depending on the connection location and strength rating.
| Truck and Trailer Application | Recommended Rivet | Why |
|---|---|---|
| Body Side Panels and General Exterior Panels | Blind Rivet | Convenient one side installation and suitable for general sheet metal fastening. |
| Body Components with Different Thicknesses | Multi Grip Blind Rivet | A wider grip range can reduce the number of different rivet lengths required. |
| Thin Aluminum or Soft Metal Panels | Large Flange or Load Spreading Rivet | A larger bearing area helps distribute the load and reduce the risk of local sheet deformation. |
| Door Frames Brackets and Reinforcement Parts | Structural Blind Rivet | Better suited for locations requiring higher tensile and shear performance. |
| Chassis Cross Members and Heavy Duty Structures | Lockbolt or Validated Structural Fastener | Better suited for high clamping force and heavy duty structural connections. |
| Outdoor Joints Requiring Improved Sealing | Closed End Blind Rivet | Helps improve sealing performance through the rivet body at the fastening point. |
Rivets for Roofing, Cladding, and Gutters
When fastening metal roofing, cladding, or gutters, you should pay close attention to rainwater, wind loads, temperature changes, sheet metal deformation, and corrosion.
In these applications, blind rivets are well-suited for panel overlaps, edge trim, flashing, decorative panels, gutter accessories, and other single-sided applications. However, standard blind rivets should not be used for primary load-bearing fasteners between panels and the main structure.
| Roofing Cladding and Gutter Application | Recommended Rivet | Why |
|---|---|---|
| General Metal Sheet Overlaps and Trim | Open End Blind Rivet | Convenient one side installation and suitable for general thin sheet metal fastening. |
| Outdoor Joints Requiring Improved Sealing | Closed End Blind Rivet | Helps reduce the possibility of water passing through the rivet body into the joint. |
| Very Thin Roofing Sheets or Flashing | Large Flange Blind Rivet | The larger head area helps distribute the load and reduce the risk of local deformation in thin sheet metal. |
| Joints with Different Total Material Thicknesses | Multi Grip Blind Rivet | A wider grip range can cover more combinations of total material thickness. |
| Aluminum Gutters and Thin Aluminum Accessories | Material Compatible Blind Rivet | The rivet material should be selected for compatibility with the sheet metal to help reduce corrosion risk. |
| Higher Load Brackets or Structural Connections | Structural Blind Rivet | Better suited for locations requiring higher tensile and shear performance. |
Rivets for Appliances and Metal Furniture
When selecting rivets for appliances or metal furniture, the focus is on achieving a balance between suitability for thin sheets, installation efficiency, appearance, cost, and long-term stability.
Common materials for these products include thin steel sheets, galvanized sheets, stainless steel sheets, and aluminum sheets; therefore, blind rivets, tubular rivets, speed rivets, and structural blind rivets are all relevant options. You should make your selection based on whether the connection point is part of a load-bearing structure, whether a smooth surface is required, whether the sheet thickness varies, and the production volume.
| Appliance and Metal Furniture Application | Recommended Rivet | Why |
|---|---|---|
| General Housings and Side Panels | Open End Blind Rivet | Convenient one side installation and suitable for general thin sheet metal fastening. |
| Components with Different Thicknesses | Multi Grip Blind Rivet | A wider grip range can reduce the number of different rivet lengths required. |
| Very Thin Metal Panels | Large Flange Blind Rivet | The larger head area helps distribute the load and reduce the risk of thin sheet deformation. |
| Lightweight Brackets and Small Components | Tubular Rivet | Requires relatively low forming force and is suitable for light and medium duty connections. |
| High Volume Repetitive Assembly | Speed Rivet | Can be used with dedicated feeding systems to improve repetitive assembly efficiency. |
| Applications Requiring a Flush Surface | Countersunk Blind Rivet | Can provide a flush or nearly flush surface when the sheet metal is suitable for proper countersinking. |
| Higher Load Brackets or Frames | Structural Blind Rivet | Better suited for locations requiring higher tensile and shear performance. |
Rivets for Solar Mounting Structures
If you are selecting rivets for solar mounting structures, you need to pay closer attention to wind loads, vibration, temperature cycling, corrosion, and long-term outdoor use than you would for ordinary indoor sheet metal work.
For standard thin-sheet metal fasteners where access to the back side is not possible, blind rivets are a convenient option. However, if the connection point bears the solar system’s primary wind, snow, or structural loads, you must evaluate the overall joint performance and compare structural blind rivets, lockbolts, or system-specified fasteners.
| Solar Mounting Application | Recommended Rivet | Why |
|---|---|---|
| General Sheet Metal Accessories and Covers | Open End Blind Rivet | Convenient one side installation and suitable for general thin sheet metal fastening. |
| Thin Wall Aluminum Profiles or Thin Metal Sheets | Large Flange Blind Rivet | The larger head area helps distribute the load and reduce the risk of local deformation in thin materials. |
| Brackets and Panels with Different Thicknesses | Multi Grip Blind Rivet | A wider grip range can cover more combinations of total material thickness. |
| Outdoor Joints Requiring Improved Sealing | Closed End Blind Rivet | Helps reduce the possibility of water passing through the rivet body into the connection. |
| Higher Load One Side Connections | Structural Blind Rivet | Better suited for applications requiring higher tensile shear and vibration performance. |
| Heavy Duty Supporting Structures | Lockbolt or Specified Structural Fastener | Better suited for connections requiring high clamping force and higher structural load capacity. |
| Aluminum Solar Mounting Structures | Material Compatible Rivet | Both connection strength and the corrosion risk between dissimilar metals should be considered. |
How to Install Blind Rivets in Sheet Metal
- STEP 1. First, measure the thickness of all the sheet metal panels to be joined.
- STEP 2. Select the appropriate rivet diameter and rivet type, referring to the data in the manufacturer’s technical specifications table.
- STEP 3. Drill holes in all the sheet metal panels to be joined according to the recommended hole diameter.
- STEP 4. Align the holes in all the sheet metal panels and confirm their positions.
- STEP 5. Remove burrs and debris from around the holes.
- STEP 6. Insert the blind rivets correctly into the holes in all the sheet metal to be joined, ensuring the rivet heads lie flush against the sheet metal with no gaps.
- STEP 7. Select the correct installation tool, nozzle size, and pulling force.
- STEP 8. Hold the installation tool vertically and activate it to set the rivet.
- STEP 9. Be sure to inspect the assembly after installation is complete.
Common Problems When Riveting Sheet Metal
The quality of a rivet installation depends not only on the rivet itself but is also influenced by other factors. These include the grip range, hole diameter, sheet metal thickness, rivet material, and installation method.
Common issues in sheet metal riveting include: loose joints, improper hole diameters, thin sheet metal deformation, abnormal forming, rivet heads not seating properly, insufficient structural strength, feeding or tooling abnormalities, and galvanic corrosion. When these issues arise, troubleshooting can focus on several key factors:
Sheet metal thickness → Rivet specifications → Hole diameter or die → Installation tool → Forming condition → Actual load → Operating environment.
| Common Problem | What You May See | Common Cause | What to Check First |
|---|---|---|---|
| Loose Joint | The sheet metal can still move or shake after riveting. | Incorrect rivet length or grip range, or insufficient clamping. | Total sheet thickness, grip range, and rivet specification. |
| Incorrect Hole Size | The rivet is difficult to insert, or there is excessive clearance between the rivet and the hole. | Hole is too small, too large, or misaligned. | Recommended hole diameter and hole-position accuracy. |
| Thin Sheet Deformation | Dents, warping, or pull-through appear around the rivet. | Excessive localized load, insufficient head bearing area, or excessive setting force. | Sheet thickness, rivet diameter, head style, and setting force. |
| Improper Rivet Tail / Blind-Side Formation | The blind-side head is too small, uneven, cracked, or fails to clamp the materials properly. | Rivet length, sheet thickness, tooling, or installation parameters are not properly matched. | Rivet length, grip range, tooling, and installation tool. |
| Rivet Head Does Not Seat Properly | There is a visible gap between the rivet head and the sheet metal. | Sheets are not fully in contact, burrs remain around the hole, or the installation angle is incorrect. | Sheet contact, deburring, and installation-tool angle. |
| Insufficient Joint Strength | The rivet becomes loose, shears, or pulls out after use. | Rivet strength is lower than the actual load requirement. | Tensile strength, shear strength, rivet diameter, and rivet quantity. |
| Insufficient SPR Interlock | The self-piercing rivet does not flare sufficiently, the bottom sheet cracks, or the rivet completely pierces the bottom sheet. | Incorrect sheet stack, rivet, die, or installation parameters. | Sheet stack, rivet length, die, and installation parameters. |
| Improper Lockbolt Locking | The collar is not formed correctly or the joint has insufficient clamping force. | Pin and collar are mismatched, or the installation tool is incorrectly set. | Pin, collar, installation tool, and joint thickness. |
| Speed Rivet Feeding Problems | Rivets jam, installation points are missed, or continuous installation becomes unstable. | Feeding-system problems, incorrect fastener specification, or improper workpiece positioning. | Feeding system, fastener size, installation tool, and positioning. |
| Corrosion Problems | Rust, white corrosion products, or material damage appears around the rivet hole. | Incompatible material combinations, insufficient surface protection, or galvanic corrosion. | Rivet material, sheet material, surface treatment, and environment. |
| Joint Fails After Initially Working | The joint gradually becomes loose or cracks after a period of use. | Vibration, impact, fatigue, or actual loads exceeding the joint capacity. | Actual load, vibration conditions, rivet type, and joint design. |
Blind Rivets vs Other Sheet Metal Fasteners
| Comparison Item | Blind Rivets | Sheet Metal Screws | Bolts and Nuts | Solid Rivets | Welding |
|---|---|---|---|---|---|
| Two Side Access | Usually not required and can be installed from one side | Usually not required | Usually required | Usually required | Depends on the welding process and joint design |
| Pre Drilled Hole | Usually required | A pilot hole may be required or self drilling and self tapping screws may be used | Usually required | Usually required | Usually not required |
| Installation Speed | Fast and suitable for batch assembly | Fast | Relatively slow | Relatively slow | Depends on the welding process and automation level |
| Ease of Removal | Not suitable for repeated disassembly and normally requires drilling for removal | Relatively easy to remove | Easy to remove | Not easy to remove | Not easy to remove |
| Thin Sheet Metal Suitability | Very good with many available sizes and structures | Good but thread holding capability in the sheet must be considered | Thin sheet may require washers or additional supporting design | Suitable but installation requires greater process control | Suitable but heat distortion and burn through must be controlled |
| Welding Heat Effect | No welding heat effect | No welding heat effect | No welding heat effect | No welding heat effect | Produces welding heat effect |
| Vibration Performance | Rivet type and load should be considered and structural blind rivets are available for higher requirements | Thread loosening should be considered in vibration environments | Locking methods can improve connection reliability | Proper joint design can provide a reliable permanent connection | Proper welding can provide a stable permanent connection |
| Joint Strength Range | Products are available from general sheet metal fastening to structural connections | Suitable for light and medium duty connections depending on design | Suitable for relatively high load connections | Suitable for high strength permanent connections | Suitable for high strength structural connections |
| Effect on Material Surface | Local mechanical forming without welding heat effect | Relatively small | Relatively small | Local mechanical forming | May cause heat distortion and damage to surface coatings |
| Typical Applications | HVAC ductwork metal enclosures electrical cabinets vehicles and equipment housings | Removable panels and sheet metal accessories | Mechanical structures and removable joints | Aerospace and high reliability permanent structures | Vehicle bodies frames and metal structures |
| Main Advantages | One side installation fast installation and excellent suitability for thin sheet metal | Easy disassembly and maintenance | High strength and removable connection | Reliable permanent connection | No additional mechanical fastener is required |
| Main Limitations | Removal is normally destructive and the rivet specification must match the required grip range | Repeated removal may damage the sheet metal threads or hole | Requires more components and installation space | Requires access to both sides during installation | Requires welding equipment and introduces heat into the joint |
When joining sheet metal, if you cannot access the back of the structure and do not need to disassemble it, blind rivets are a very practical option. If the connection point needs to be repeatedly disassembled, using screws or bolts and nuts is more convenient. If your sheet metal riveting application requires a high-strength, permanent connection and access to both sides of the workpiece, consider solid rivets. If the sheet metal is suitable for welding and can withstand heat input, consider welding.
When Should You Use Blind Rivets for Sheet Metal?
- During operation, contact is limited to one side of the sheet metal
- Used to join thin steel, aluminum, or stainless steel sheet metal
- Improves assembly efficiency
- Welding is not desired
- Significant variations in sheet thickness at different locations
- For outdoor applications or where improved sealing performance is required
When Should You Avoid Blind Rivets for Sheet Metal?
- Frequent disassembly and reassembly
- When blind rivets cannot provide the required high structural strength
- Connections subject to severe vibration and impact over the long term
- Very high sealing requirements
- Insufficient space for forming the blind end of the blind rivet
- Incompatibility between the rivet material and the sheet metal, resulting in a high risk of corrosion
Conclusion: Which Rivet Is Best for Your Sheet Metal Project?
The type of rivet you should choose for your sheet metal project depends on the sheet thickness, installation space, joint load, production efficiency, and operating environment.
If your project involves standard thin-sheet connections, access from the back is not possible, and frequent disassembly is not required, a blind rivet is the ideal choice. If your sheet metal requires high strength and access from both sides, we recommend using a solid rivet. For light- or medium-load assemblies, tubular rivets are recommended. For automotive applications involving multiple layers of thin sheet metal and automated production, choose SPR rivets. If high strength combined with single-sided installation is required, consider structural blind rivets. For heavy-load structures subject to high vibration, lockbolts are recommended. If you need high-volume, rapid, repetitive assembly, consider speed rivets.
If you’re still unsure which rivet to choose, Rivmate can provide selection recommendations based on your sheet metal joining requirements.
Frequently Asked Questions About Rivets for Sheet Metal
What Rivets Should You Use for Thin Sheet Metal?
For standard thin sheets, consider using open-end blind rivets. For very thin materials, we recommend using large-flange blind rivets. If there are significant variations in sheet thickness, consider using multi-grip blind rivets. For thin sheets subjected to high loads, we recommend evaluating structural blind rivets.
How Do You Prevent Rivets From Pulling Through Sheet Metal?
To prevent rivets from pulling out of sheet metal, you can use large-flange blind rivets, select the appropriate grip range, control the hole diameter, increase the number of rivets or optimize their spacing, or add washers or reinforcement plates.
Can Blind Rivets Be Removed and Reused?
No. Blind rivets are permanent fasteners. Removing them will damage the rivets themselves, making them unusable.
Work with a IATF 16949 Certified Blind Rivet Manufacturer
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Rivmate Rivet
Rivmate is blind rivets manufacturers in china. The company is IATF 16949 certified and offers high-strength structural blind rivets that serve as alternatives to Huck and Avdel products.
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Rivmate Rivet
Rivmate is blind rivets manufacturers in china. The company is IATF 16949 certified and offers high-strength structural blind rivets that serve as alternatives to Huck and Avdel products.
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I am the boss of Rivmate. For over two decades, we have specialized in the manufacture of blind rivets, providing our customers with reliable riveting solutions. Need riveting services? Feel free to contact us.