Hey mechanics and DIYers, these M18 copper washers are exactly what you need for all your sealing jobs! This 10-pack gives you plenty of replacements for oil drain plugs, hydraulic fittings, fuel lines, and pretty much any application where you need a reliable seal. The dimensions are perfect - 18mm inner diameter, 24mm outer diameter, and 1mm thickness, so they fit standard M18 bolts and fittings beautifully. What makes copper washers so great is how they create a much tighter seal than steel or rubber, plus they handle heat way better without degrading. The smooth surface reduces friction between nuts and bolts, which helps prevent loosening from vibration - super important for automotive applications. I've used these for oil changes, brake line fittings, and even some plumbing projects around the house. The quality copper material is corrosion-resistant and conducts heat efficiently, so they'll last for years without deteriorating. Having 10 in the pack means you can do multiple vehicles or keep spares in your toolbox for when you need them. Installation is straightforward - just slide them on and torque everything down normally. Whether you're working on cars, motorcycles, industrial equipment, or home appliances, these copper washers provide that perfect seal that prevents leaks and keeps everything running smoothly. Seriously, if you do any kind of mechanical work, having a supply of quality copper washers like these is an absolute must-have in your toolkit!
Free 30-day returns 
Free 30-day returns
