Flat Washers
Flat Washers
Copper Washer
Sealing washers for drain plugs, banjo bolts and fittings
Copper washers are the classic sealing washer for oil drain plugs, brake lines, banjo bolts and hydraulic fittings: the soft copper deforms under torque to form a leak-proof seal. Copper also offers excellent electrical conductivity for terminals and grounding.
- Soft copper deforms under torque for a leak-proof seal
- Excellent electrical and thermal conductivity
- Resists oil, fuel and brake fluid
- Standard and custom sizes, burr-free edges
- Material
- Copper (T2 and others)
- Standard
- DIN 125, DIN 9021, ISO 7089 / 7093, GB 97.1, ANSI B18.22.1, JIS, or custom drawing
- Sizes
- Metric and inch sizes; custom OD, ID and thickness
- IATF 16949
- Custom to drawing
- Factory direct
Copper washers are the classic sealing washer for oil drain plugs, brake lines, banjo bolts and hydraulic fittings: the soft copper deforms under torque to form a leak-proof seal. Copper also offers excellent electrical conductivity for terminals and grounding.
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 | Copper (T2 and others) |
|---|---|
| Standard | DIN 125, DIN 9021, ISO 7089 / 7093, GB 97.1, ANSI B18.22.1, JIS, or custom drawing |
| Sizes | Metric and inch sizes; custom OD, ID and thickness |
| Thickness | 0.1 – 10 mm |
| Surface Finish | Plain or tin plated |
| Inspection | Optical / roll sorting, 2D vision, dimensional and flatness check |
| 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: Oil drain plugs, brake and fuel lines, hydraulic fittings, electrical terminals
Inquiry
Interested in Copper 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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