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Custom Automotive Weld Screws ISO / DIN Compliant Zinc Geomet Coating OEM

Categories Cold Headed Fastener
Brand Name: guanbiao
Model Number: M8*20
Certification: ISO9001
Place of Origin: China
MOQ: 50000
Payment Terms: T/T
Supply Ability: 5000000
Delivery Time: 15-20 work days
Packaging Details: Plastic bag + carton + pallet
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Custom Automotive Weld Screws ISO / DIN Compliant Zinc Geomet Coating OEM

Custom Automotive Weld Screws ISO/DIN Compliant Zinc/Geomet Coating OEM & Batch Orders Guanbiao hardware

High-Strength Automotive Weld Screws for Critical Joints** Our precision-engineered weld screws are designed for permanent bonding in automotive chassis, exhaust systems, and electric vehicle battery assemblies. Certified to ISO 13918 and DIN 928/929 standards, they ensure vibration-resistant connections even under extreme thermal cycling.
**Why Choose Our Weld Screws?** ✔ **Zero Pre-Drilling Needed** – Self-fixturing design reduces assembly time ✔ **Customizable** – Shank length, thread pitch, head type tailored to your CAD specs ✔ **Robotic Welding Compatible** – Consistent projection height (±0.1mm tolerance) ✔ **EV-Ready** – Passes 1000hr salt spray test (Geomet® coating option)

weld screws


TECHNICAL SPECIFICATIONS

Material

Carbon Steel (ML08Al), Stainless Steel (A2/A4), Aluminum Alloy

Strength Grade

4.8 | 8.8 | 10.9 (Custom heat treatment available)

Diameter Range

M3-M12 (Other sizes negotiable)

Projection Height

1.5mm-4mm (±0.1mm controlled)

Surface Treatment

  • Zinc Flake (5-8μm, RoHS compliant)

  • Geomet® (12-15μm, 1000hrs salt spray)

  • Phosphate (for paint adhesion)

Welding Method

Resistance projection welding (RPW), Arc stud welding


Application

Recommended Spec

Coating

EV Battery Trays

M6-M10, 10.9 grade

Geomet® + Insulator Washer

Exhaust Manifolds

M5-M8, A2 stainless

High-temp ceramic coating

Door Hinges

M4-M6, 8.8 grade

Zinc-nickel 8μm

Seat Frame Welding

M5-M8, ML08Al

Phosphate + Oil


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Quality Custom Automotive Weld Screws ISO / DIN Compliant Zinc Geomet Coating OEM for sale
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