BOLT MC Hardware Copper Crush Washers

BOLT MC Hardware Copper Crush Washers are soft-tempered crush washers (also called compression washers or sealing washers) made for fluid-sealing jobs on motorcycles, ATVs and other powersports equipment. They suit oil drain plugs, coolant drain plugs, check bolts and other places where a bolt holds fluid in.

Key Features:

• Soft-tempered copper that compresses to form a leak-resistant seal under the bolt head or plug
• Made for drain plug, check bolt and similar fluid-containment uses
• Hardware built to meet or exceed OEM specifications
• Available in several thread and diameter options to match common fasteners

Most manufacturers recommend fitting new sealing washers at each fluid change. Crush washers are designed to deform once to seal, so replacing them helps prevent weeping and leaks at the plug. Choose the option that matches your fastener size.