20 Pcs M6 Copper Washers - 18mm OD, 1mm Thick Flat Sealing Gaskets For Oil Plugs, Hydraulic Fittings

If you're working on cars, bikes, plumbing, or machinery, having a stash of these copper washers is a smart move.

This pack gives you 20 pieces, all sized M6 (6mm inner diameter) with an 18mm outer diameter and 1mm thickness.

They're made from solid copper, which is great because copper seals really well under compression and can handle heat better than rubber or steel washers.\n\nUse them for oil drain plugs, fuel line fittings, hydraulic connections, or anywhere you need a reliable, leak-proof seal.

They're soft enough to deform slightly when tightened, creating a tight seal, but durable enough to resist corrosion.

Super easy to use – just place one between the bolt head or nut and the surface, tighten, and you're good.\n\nHandy for DIY repairs, automotive maintenance, or even industrial applications.

Having 20 means you've got plenty for multiple jobs or future fixes.

A simple, essential hardware item that can save you from messy leaks.