Product Summary

Longze High-Strength Solid Rivets (DIN 660 / ASME B18.1.1) are the industry standard for creating permanent, high-shear structural joints. Manufactured in Yongnian, China,

our solid rivets are cold-headed with a precision-formed semi-circular (Round) head to ensure maximum load distribution. Whether for aircraft-grade aluminum framing, heavy-duty

truck bodies, or stainless steel cookware, Longze solid rivets provide a vibration-proof, tamper-evident bond that expands to fill the hole, ensuring zero movement between joined components.

• ✔ Superior Material Ductility: Our rivets undergo a specialized annealing process to ensure perfect malleability, allowing the tail to form a secure "shop head" without cracking or stress fractures.

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• ✔ High Shear Strength: Unlike blind rivets, the solid shank provides a continuous cross-section of metal, offering significantly higher shear resistance for heavy-duty structural loading.

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• ✔ Precision Diameter Control: Manufactured to strict DIN 660 h11 tolerances, our rivet shanks ensure a snug fit in pre-drilled holes, preventing joint slippage and ensuring structural alignment.

• Standards: DIN 660 (Round Head), ASME B18.1.1 (Small Rivets), ISO 1051.

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• Diameter Range: 1.0 mm to 36.0 mm | 1/16" to 1-1/2".

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• Length Range: 3 mm to 200 mm.

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• Material Options: Aluminum (5052/6061), Stainless Steel (304/316), Copper, Carbon Steel.

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• Head Style: Flat Round (Semi-Circular).

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• Surface Finish: Anodized (Aluminum), Passivated (Stainless), Plain, Zinc Plated.

Mechanical Properties & Material Standards

• Matching the rivet material to the substrate to prevent galvanic corrosion.

• Material Type	Grade	Shear Strength	Ductility (Elongation)	Best Application
  Aluminum	5052 / 6061	120 - 200 MPa	≥ 20%	Aircraft / Ladders
  Stainless 304	A2	500 - 600 MPa	≥ 40%	Food Grade / Marine
  Stainless 316	A4	550 - 650 MPa	≥ 35%	Chemical / Coastal
  Copper	C1100	180 - 220 MPa	≥ 30%	Electrical / Decor

Standard Cross Arm Dimensions

• Common dimensions for metric (DIN 660) semi-circular head rivets.

• Rivet Dia (d)	Head Dia (dk)	Head Height (k)	Rivet Radius (r)	Weight (kg/1000pcs - Al)
  M3	5.2 mm	1.8 mm	2.9 mm	0.28 kg
  M4	7.0 mm	2.4 mm	3.8 mm	0.65 kg
  M5	8.8 mm	3.0 mm	4.8 mm	1.25 kg
  M6	10.5 mm	3.6 mm	5.7 mm	2.10 kg

Surface Treatment & Environment

• Ensuring 30+ years of service life in corrosive environments.

• Treatment	Material	Salt Spray Test	Appearance	Environment
  Anodizing	Aluminum	240+ Hours	Clear / Colored	Outdoor Marine
  Passivation	Stainless	144 - 240 Hours	Bright / Clean	Chemical / Food
  Zinc Plated	Steel	72 - 144 Hours	White / Yellow	Dry Industrial
  Plain (Clean)	Copper	N/A	Natural Red	Decorative

Avoid Pitfalls:

• Material Mismatch: Never use a stainless steel rivet on an aluminum sheet unless you use a barrier coating. This prevents Galvanic Corrosion (the aluminum will rot away). Longze recommends matching the rivet material to the base material.

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• Incorrect Length Selection: A rivet that is too long will bend rather than expand; one that is too short won't form a secure shop head. As a rule of thumb, use a length = Total Material Thickness + 1.5x Rivet Diameter.

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• Work Hardening: If you hammer the rivet too much, it becomes brittle. Our Annealed Series rivets are designed to flow smoothly with minimal force, ensuring a tight, crack-free head.

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Perfect Fit Assembly:

• Matched Rivet Sets: Use the correct concave "rivet set" tool that matches the DIN 660 head radius. Using a flat tool on a round head will deform the aesthetic and weaken the joint.

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• Hole Clearance: For the best expansion, ensure your drill bit is 0.1mm - 0.2mm larger than the rivet diameter.

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Quality Control & Logistics:

• ISO 9001 Certified: 5-step QC including computerized diameter verification, grain flow analysis (to check for internal cracks), and ductility testing.

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• Sea-Worthy Packaging: Rivets are packed in plastic-lined 25kg cartons or bags, then secured in reinforced crates to ensure no oxidation or physical damage during export from our Yongnian hub.

• Q: Can you provide large diameter rivets for bridge or ship construction? A: Yes, we manufacture heavy-duty solid rivets up to 36mm (1-1/2") diameter for hot-riveting applications in heavy infrastructure.

• Q: Do you offer ASME B18.1.1 sizes? A: Absolutely. We produce a full line of Imperial small rivets (under 7/16") and large rivets for the North American truck and trailer industry.