The Zinc Plated Open End Blind Rivet (commonly known as a pop rivet, dome head blind rivet, break-pull mandrel rivet, or DIN 7337 / ISO 15977 fastener) is a two-piece mechanical fastener engineered for rapid, permanent joining of sheet metal, plastics, and composite assemblies where access is restricted to one side of the workpiece (“blind” fastening). Consisting of a hollow cylindrical rivet body with a pre-formed head and a break-pull mandrel rod passing through its center, setting the rivet with a pneumatic or manual rivet gun draws the mandrel head into the rivet body. This expands the body tail into a secure blind-side shop head and snaps the mandrel off cleanly at its engineered notch, complying fully with global ISO standards.
Technical Specifications of Carbon Steel & Stainless Steel Blind Rivets
We produce open end blind rivets in all-steel (carbon steel body / carbon steel mandrel), all-stainless (SS304 body / SS304 mandrel, SS316 body / SS316 mandrel), and aluminum/steel material pairings. Trivalent electro-zinc plating protects steel components against atmospheric oxidation.
| Rivet Material Combination | Body Material | Mandrel Material | Shear & Tensile Capacity | Corrosion Protection Level |
|---|---|---|---|---|
| Steel / Steel (St/St) | Low Carbon Steel (Q195 / Q235) | High-Tensile Hardened Carbon Steel Wire | High Mechanical Shear & Tensile Strength | 5 µm – 10 µm Electro-Zinc Plated (Blue-White / Yellow) |
| Stainless Steel A2 (SS304/SS304) | Austenitic Stainless Steel SS304 (1.4301) | Stainless Steel Wire SS304 | Very High Shear Strength & Vibration Resistance | Acid Passivated Clean Natural Finish |
| Stainless Steel A4 (SS316/SS316) | Austenitic Stainless Steel SS316 (1.4401) | Stainless Steel Wire SS316 | Maximum Structural Strength in Harsh Environments | Passivated Superior Salt Spray Protection |
| Aluminum / Steel (Al/St) | Aluminum Alloy 5050 / 5052 / 5154 | Zinc Plated High-Tensile Carbon Steel Wire | Lightweight Standard Duty Fastening | Anodized / Polished Body with Zinc Plated Pin |
Precision Manufacturing and Mandrel Break Assembly Process
At our manufacturing facility in Handan, China, open end blind rivets are produced on automated cold heading, mandrel rolling, and assembly lines:
- Multi-Station Body Cold Heading: High-speed cold formers press wire rod into seamless tubular rivet bodies with precise flange dimensions (Dome, Flat Countersunk, or Large Flange).
- Precision Mandrel Heading & Notching: Automated nail formers forge the spherical mandrel head and cut exact break-point notches on high-tensile wire rod.
- Electro-Plating & Chemical Passivation: Carbon steel components undergo trivalent chromium (Cr3+) electro-galvanizing, while stainless steel rivets are passivated to prevent surface oxidation.
- 100% Automatic High-Speed Assembly: Automated assembly machines insert mandrels into rivet bodies, performing optical sorting to guarantee zero defects.
Key Engineering and Industrial Applications of Open End Blind Rivets
Open end pop rivets provide fast, vibration-resistant single-sided fastening across diverse manufacturing industries:
- Automotive Bodywork, Trailers & Bus Assembly: Fastening exterior commercial vehicle body panels, trailer aluminum side sheets, and interior trim.
- HVAC Ducting & Electrical Enclosures: Joining galvanized sheet metal air ducts, switchgear cabinets, and server rack chassis.
- Aluminum Windows, Doors & Solar PV Racking: Assembling aluminum architectural frames, metal roofing sheets, and solar panel mounting brackets.
Quality Control and Export Packaging for Blind Rivets
Handan YiHao Fastener enforces strict Quality Assurance (QA) standards for all overseas export orders. Testing procedures include 100% shear load testing, tensile pull load testing, mandrel break force verification, head diameter micrometer checks, and salt spray validation.
All export items are packed in 500/1000pcs small color boxes or bulk 25kg inner cartons, neatly stacked on ISPM 15 compliant fumigated wooden pallets, and wrapped in protective stretch film for safe ocean freight.
Request Factory Direct Pricing for Open End Blind Rivets
Looking for a trusted manufacturer in Handan, China for carbon steel or stainless steel open end blind rivets / pop rivets (DIN 7337, ISO 15977, Zinc Plated, SS304, SS316)? Contact Handan YiHao Fastener today for technical datasheets, shear/tensile test reports, free samples, and direct bulk export quotes.
