Copper Crush Washers 12 mm ID × 18 mm OD

Eliminate leaks and maintain reliable fluid connections with AGS’s 12 mm ID × 18 mm OD copper crush washers. Made from soft, high-conductivity copper, each washer deforms uniformly under torque to fill surface imperfections and create a tight seal. Ideal for professional mechanics, fleet service operations, and DIY enthusiasts working on brake banjo fittings, fuel line connections, hydraulic assemblies, and more.

Key Features

Premium Copper Alloy: Soft, malleable material conforms perfectly to mating surfaces for a true seal

Uniform Crush Profile: Consistent deformation ensures repeatable torque values and leak-free performance

Corrosion-Resistant: Naturally withstands brake fluid, fuel, oil, and hydraulic media without pitting

Versatile Compatibility: Fits standard 12 mm male fittings with 18 mm seat diameters across automotive, industrial, and agricultural applications