The Rusty Bolt Shop M8 Copper Crush Washers – 8mm X 12mm X 1mm, Metric, For Brakes, Fuel, Oil, Turbo – Choose Quantity

You can never have too many crush washers, right?

These are M8 copper crush washers from The Rusty Bolt Shop.

The specs are 8mm inside diameter, 12mm outside diameter, and 1mm thick.

That's a common size for banjo bolts on brake lines, fuel systems, oil drains, and turbo oil feeds.

Copper is the classic material because it crushes to form a perfect seal but is soft enough not to damage the mating surfaces.

You can pick the amount you need from the options.

A must-have for any mechanic's stash, especially when you're in the middle of a job and realize the old one is toast.

Grab a handful and be prepared.