Wholesale 3.2 mm Pop Rivets
3.2 mm Pop Rivets are a widely used standard pop rivet specification in industrial applications. This size corresponds to 1/8 inch in the imperial system and is extensively employed in general assembly and mass production scenarios.
- Standardized specifications, globally compatible
- Consistent fastening performance
- Suitable for bulk orders and long-term supply
What Does 3.2 mm (1/8 Inch) Mean in Pop Rivets?
3.2 mm refers to the rivet shank diameter, not the pre-drilled hole diameter.
The shank diameter is the fundamental parameter for determining a rivet’s strength grade and suitability for specific applications. The hole diameter typically needs to be slightly larger than the shank diameter.
3.2 mm is equivalent to 1/8 inch in the imperial system.
This is a widely adopted standard size in the fastener industry. In European and American markets, this dimension is considered a universal specification.
The recommended hole diameter is typically larger than 3.2 mm.
The common recommended range is 3.3–3.4 mm. Specific hole diameters are influenced by the rivet structure, material combinations, and installation processes.
Metric and imperial systems have distinct application contexts.
European and Asian manufacturing systems predominantly use metric labeling. In North American markets and related projects, 1/8 inch is more frequently employed as the standard dimension for selection and procurement.
Shank Diameter
3.2 mm, equivalent to 1/8 inch in imperial units.
This is one of the most common standard sizes for blind rivets in the international market.
Hole Size
Typically 3.3–3.4 mm.
The hole diameter should be slightly larger than the shank diameter to ensure smooth insertion and secure riveting.
Available Materials
Common combinations include aluminum/steel, aluminum/aluminum, and stainless steel/stainless steel.
Head Styles
Offers flat head, large flange, and countersunk head configurations.
Select based on aesthetic requirements or load distribution.
Typical Grip Range
Suitable for various combinations of sheet thicknesses.
Common assembly requirements can be covered by selecting different rivet lengths.
Standards
Manufactured to industry standards such as DIN, ISO, or IFI.
Also customizable per customer drawings or technical specifications.
3.2 mm Pop Rivet Types
3.2 mm Aluminum / Steel Dome Head Pop Rivet
Suitable for general thin sheet metal assembly, balancing installation efficiency with connection reliability.
3.2 mm Aluminum / Aluminum Dome Head Pop Rivet
Lightweight overall, ideal for applications demanding weight reduction and corrosion resistance.
3.2 mm Stainless Steel Dome Head Pop Rivet
Offers higher tensile and shear strength for connections requiring enhanced durability.
3.2 mm Aluminum / Steel Large Flange Pop Rivet
Large flange design distributes stress to reduce localized deformation risks in thin sheets.
3.2 mm Aluminum / Aluminum Large Flange Pop Rivet
Enhances clamping stability while maintaining lightweight construction.
3.2 mm Aluminum / Steel Countersunk Pop Rivet
Countersunk head achieves flush mounting with the workpiece surface.
3.2 mm Stainless Steel Countersunk Pop Rivet
Provides stable structural strength while ensuring a smooth surface finish.
3.2 mm Closed End Aluminum / Steel Pop Rivet
Closed-end construction prevents liquid or gas permeation through the rivet joint.
Specifications
Key Specifications Table (3.2 mm / 1/8" Pop Rivets)
| Parameter | Specification |
|---|---|
| Shank Diameter | 3.2 mm (1/8″) |
| Recommended Hole Size | Typically 3.3–3.4 mm (depending on rivet design and material) |
| Grip Range | Multiple grip ranges available (selected based on total material thickness) |
| Available Lengths | Various lengths available to match different grip ranges |
| Head Diameter | Varies by head type (Dome Head / Large Flange / Countersunk) |
| Tensile Strength | Depends on material combination and rivet construction |
| Shear Strength | Depends on material combination and rivet construction |
| Material Options | Aluminum/Steel, Aluminum/Aluminum, Stainless Steel/Stainless Steel |
HOW TO CHOOSE
3.2 mm Pop Rivets Compared with Other Common Sizes
3.2 mm vs 3.0 mm Pop Rivets
| Comparison Aspect | 3.2 mm Pop Rivets | 3.0 mm Pop Rivets |
|---|---|---|
| Strength Level | Provides higher overall fastening strength | Slightly lower strength, mainly for light-duty applications |
| Typical Applications | Sheet metal assemblies, HVAC components, industrial enclosures | Electronic enclosures, lightweight components |
| Hole Size & Drilling Impact | Slightly larger hole size, but improved installation stability | Smaller hole size, lower impact on thin sheets |
3.2 mm (1/8 inch) is a mature industrial standard specification commonly used in scenarios requiring higher stability and versatility. 3.0 mm is more suitable for lightweight applications where weight and aperture requirements are critical.
3.2 mm vs 4.0 mm Pop Rivets
| Comparison Aspect | 3.2 mm Pop Rivets | 4.0 mm Pop Rivets |
|---|---|---|
| Strength Level | Medium strength, suitable for most industrial assembly applications | Higher strength, suitable for applications with higher load requirements |
| Typical Applications | General industrial assembly, equipment enclosures | Structural components, load-bearing areas |
| Hole Size & Drilling Impact | Moderate drilling size, balancing installation efficiency and stability | Larger drilling size, more noticeable impact on thin sheets |
When no additional structural strength is required, 3.2 mm is typically the more balanced choice. 4.0 mm is suitable for connection scenarios where higher loads or safety factor requirements are explicitly present.
APPLICATIONS
Applications of Open End Blind Rivets
Sheet Metal Assemblies
3.2 mm (1/8″) is one of the most common blind rivet specifications in sheet metal assemblies. Its dimensions are well-established, facilitating standardized production and long-term supply.
HVAC Components
This specification delivers sufficient joint strength while requiring moderate drilling, enhancing efficiency in bulk installations.
Equipment Enclosures
Standard hole and shank diameter matching helps control assembly consistency and reduce rework risks.
Light Industrial Structures
The 3.2 mm size offers moderate strength, suitable for structural connections where larger rivets are unnecessary.
Automotive Interior & Accessories
Widely adopted in non-structural applications, facilitating quality control and bulk procurement.
General Industrial Assembly
The 1/8-inch standard offers high versatility across global supply chains, simplifying cross-regional production and spare parts management.
WHY USE IT
Advantages & Key Benefits
Blind-Side Installation Efficiency
Supports single-side blind installation without requiring rear access, significantly boosting assembly efficiency while reducing labor and time costs. Ideal for high-frequency, high-volume industrial installation scenarios.
Standardized Specifications for Safer Selection
Multiple diameters, grip ranges, and head configurations simplify engineering selection and future replacements, minimizing rework risks from specification mismatches.
Multiple Material Combinations
Offers aluminum, carbon steel, stainless steel, and hybrid options for optimal matching with substrates and environments, balancing strength, corrosion resistance, and cost.
Consistent Mandrel Break Performance
Stable break-off points and uniform tail expansion ensure installation consistency in batches, minimizing loosening and connection failure rates.
Cost-Effective Solution for High-Volume Use
As a proven universal blind rivet, the open-end design delivers fundamental fastening performance while facilitating bulk procurement and cost control.
Wide Tool Compatibility
Compatible with manual, pneumatic, and electric riveting tools, its universal tooling enables rapid deployment across production lines or job sites, minimizing equipment changeover and training costs.
Reliable Performance in Non-Sealed Applications
Optimized for non-sealed conditions, it delivers stable connection performance in indoor or controlled environments. Suitable for sheet metal, enclosure casings, and structural component assembly.
OEM and Bulk Supply Ready
Supports bulk supply and OEM customization requirements, including specifications, materials, and packaging solutions. Facilitates the establishment of long-term, stable industrial fastener supply systems for customers.
Quality & Certifications
Quality Control and Industry Certifications
IATF 16949 / ISO Quality Management System
We have established and continuously operate a quality management system compliant with IATF 16949 and ISO requirements. Quality control encompasses critical stages including raw material procurement, incoming inspection, production process control, and final inspection. All key processes adhere to explicit control standards and documentation requirements. This system is widely applied across automotive and industrial component supply chains. This helps ensure product stability, consistency, and traceability throughout long-term supply cycles.
Batch Consistency Control
During mass production, we effectively manage variations in product dimensions, tolerances, and performance through fixed process parameters, clear operational standards, and batch management protocols. This ensures consistent assembly performance for rivets of the same specification across different production batches. This is particularly crucial for continuous assembly lines and long-term projects, reducing risks of on-site adjustments and rework. It meets the ongoing procurement needs of OEM customers and industrial distributors.
Tensile and Shear Testing Capabilities
We utilize standard tensile and shear testing equipment to validate the joining performance of blind rivets across various specifications, material combinations, and structural designs. Test results serve as reference for engineering selection, quality confirmation, and batch release.
Export and Distribution Experience
We possess mature export and international business expertise, having long-term service experience with industrial clients across diverse countries and regions. Familiar with international trade packaging standards, product labeling, documentation requirements, and delivery processes, we can accommodate the practical needs of distributors and project-based customers.
OEM
Customization Options for 3.2 mm (1/8 Inch) Pop Rivets
Length & Grip Range
- Customizable rivet lengths and clamping ranges based on the total thickness of connected materials.
- This ensures stable clamping force after riveting.
- Enhances consistency in batch assembly.
Material & Surface Finish
Supports multiple material combinations and surface treatment options.
Selection based on strength, corrosion resistance, and operating environment.
Common solutions have undergone long-term validation in industrial applications.
Head Style
Available in flat head, large flange, and countersunk configurations.
Different head types affect force distribution and visual appearance.
Suitable for varying assembly clearances and aesthetic requirements.
Packaging & Labeling
Multiple packaging specifications and labeling options available.
Facilitates warehouse management and distribution operations.
Also accommodates customer branding requirements.
FAQs - 3.2 mm (1/8 Inch) Pop Rivets
Q1: Is 3.2 mm the same as 1/8 inch?
Yes, in the field of blind rivets, 3.2 mm is equivalent to 1/8 inch. This is a long-established standard conversion within the industry, not an approximate substitute. In industrial applications and procurement, these two dimensions are typically regarded as the same specification grade.
Q2: What hole size is required?
For 3.2 mm (1/8 inch) blind rivets, a pre-drilled hole size of 3.3–3.4 mm is generally recommended. The precise hole diameter should be confirmed based on the rivet structure, material combination, and assembly process. A suitable hole size enhances installation consistency.
Q3: What is the MOQ?
Minimum order quantities vary based on rivet type, material combinations, and customization requirements. For standard 3.2 mm specifications, we generally offer flexible MOQs, which can be confirmed upon inquiry.
Q4: Can you provide samples?
Yes. We can provide samples tailored to application requirements for assembly testing or performance verification. Sample specifications, quantities, and lead times can be negotiated based on project specifics.
Q5: Can you help select grip range?
Certainly. Simply provide the thickness combinations of the materials to be joined and the application scenario, and we can recommend suitable rivet lengths and clamping ranges to ensure reliable riveting results.
Get Your 3.2 mm (1/8") Pop Rivet Quote
If you’re seeking a stable supply of 3.2 mm (1/8 inch) blind rivets, submit your requirements directly via the form below. We’ll assist in confirming suitable specifications based on your application, including clamping range, material combinations, and head type selection, while providing clear quotations and delivery schedules.
As a manufacturer, we prioritize long-term partnerships and supply stability. You need not prepare complex documentation during the inquiry stage—simply outline your basic application requirements and anticipated purchase volume. Our engineering and sales teams will guide you through the selection process, enhancing procurement efficiency and mitigating project risks.
Reply within 12 Hours
Send us a message if you have any questions or request a quote. We will be back to you ASAP!
