Automotive Washers
Conical Washer (Taper Washer)
Conical / taper washer for uniform load distribution
Automotive Washers
Automotive Washers
External Serrated Washer
DIN 6798 A / DIN 6797 A · external tooth lock washer
External serrated washers carry fine teeth on the outer edge that bite into both the fastener head and the mating surface, preventing rotation and loosening under vibration. They also cut through paint and coatings for a reliable earthing contact.
- External teeth lock the fastener and the mating surface
- Resists rotation and loosening under vibration
- Bites through paint for a reliable earthing contact
- Spring steel or stainless steel, heat treated in house
- Material
- Carbon steel (SPCC, 45#), spring steel (65Mn), stainless steel (SS304 / SS316), copper, brass, aluminum
- Standard
- DIN / ISO / ANSI (IFI) / JIS / BS / AS / GB, or custom drawing
- Thickness
- 0.1 – 10 mm
- IATF 16949
- Custom to drawing
- Factory direct
External serrated washers carry fine teeth on the outer edge that bite into both the fastener head and the mating surface, preventing rotation and loosening under vibration. They also cut through paint and coatings for a reliable earthing contact.
Why Choose Changbiao
As a factory-direct manufacturer with 20+ years of experience, we control the whole process — die design, stamping, heat treatment, surface finishing partners, inspection and packing — under an IATF 16949:2016 system. Custom sizes, materials and finishes are welcome; send us your drawing or sample for a quotation within 24 hours.
| Material | Carbon steel (SPCC, 45#), spring steel (65Mn), stainless steel (SS304 / SS316), copper, brass, aluminum |
|---|---|
| Standard | DIN / ISO / ANSI (IFI) / JIS / BS / AS / GB, or custom drawing |
| Thickness | 0.1 – 10 mm |
| Surface Finish | Plain, zinc plated, zinc-nickel, zinc flake, black oxide, phosphate, passivation |
| Heat Treatment | Hardening and tempering on in-house line (on request) |
| Inspection | Optical / roll sorting, 2D vision, hardness test, salt-spray test |
| Certification | IATF 16949:2016, ISO 9001 |
| Packing | Cartons on pallets, or per customer requirement |
* Custom specifications available on request. Please send your drawing for an exact quotation.
Typical applications: Automotive electrical grounding, body panels, appliances, electronics
Inquiry
Interested in External Serrated Washer?
Tell us the size, material, finish and quantity — or upload your drawing. Our engineers will reply within 24 hours.
- AddressNo. 86 Nanhu Avenue, Chengdong Town,
Hai'an City, Nantong, Jiangsu Province, China - Phone+86 176 5125 5759
- WhatsApp+86 176 5125 5759
- Email[email protected]
- Working HoursMon – Sat, 8:00 – 17:30 (GMT+8)
Request a Quote
Fill in the form below and our sales engineer will contact you within 24 hours.
Your information and drawings are kept strictly confidential. NDA available on request.
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