Copper Crush Washers

5.0·1 review

Size

£0.22

In Stock

Free 100-day Returns

no questions asked

Free UK Delivery over £30

express options available

2-Year Warranty

free repair or replacement

Copper Crush Washers for Banjo Bolts & Fluid Fittings

These annealed copper crush washers are designed to create a seal between suitable fluid fittings and their mating surfaces. The soft copper compresses as the connection is tightened, allowing the washer to conform to the sealing faces.

Suitable for Banjo Connections

Copper crush washers are commonly used with banjo bolts, with a washer positioned between the sealing faces of the connection. A single banjo connection normally requires two washers, while a double banjo connection normally requires three.

Multiple Internal Diameters

A range of internal diameters is available for compatible metric, imperial, AN and BSPP connections. Select the washer according to the bolt or fitting being used and check the compatibility information in the Specifications.

Sold Individually

Each copper crush washer is sold individually, allowing the required size and quantity to be selected for the installation.

Single-Use Sealing Washer

Once a copper crush washer has been compressed, it should be replaced when the sealed connection is dismantled and reassembled.

Type: Crush Washer Compressible sealing washer for fluid connections
Material: Annealed Copper Soft metal construction designed to compress during installation
Seal Type: Compression Seal Deforms against mating surfaces when tightened
Reuse: Single Use Replace after the washer has been compressed
Quantity: 1 Washer Sold individually

Available copper crush washer sizes and common compatibility
Product Code	Internal Diameter	Common Compatibility
WSH-CRU-CU-6	6mm	M6
WSH-CRU-CU-8	8mm	M8
WSH-CRU-CU-10	10mm	M10 3/8" UNF · 1/8" BSPP
WSH-CRU-CU-11	11mm	7/16" AN4
WSH-CRU-CU-12	12mm	M12
WSH-CRU-CU-14	14mm	M14 AN6

Banjo Bolts
Brake Systems
Clutch Systems
Fuel Systems
Oil Systems
Hydraulic Systems

Banjo Bolts

A single banjo connection normally requires two crush washers, while a double banjo connection normally requires three.

Free repair or replacement for two years from the date of purchase. Learn more

Frequently Asked Questions

What are copper crush washers used for?
Copper crush washers are used to create a seal between suitable fluid fittings and mating surfaces. They are commonly used with banjo bolts and other compatible fluid connections.
How do I choose the correct washer size?
Select the internal diameter that corresponds with the bolt or fitting being used. The available sizes and common compatibility information are shown in the Specifications.
How many copper crush washers do I need for a banjo fitting?
A single banjo connection normally requires two crush washers, with one on each side of the banjo fitting. A double banjo connection normally requires three, including one between the two banjo fittings.
How do copper crush washers create a seal?
The annealed copper compresses as the connection is tightened, allowing the washer to conform to the mating surfaces.
Can copper crush washers be reused?
No. Once a copper crush washer has been compressed, it should be replaced when the sealed connection is dismantled and reassembled.
Are the copper crush washers sold individually?
Yes. Each copper crush washer is sold individually, so the required size and quantity can be selected for the installation.