Ninja Lock Washer 1 3/8 Inch Internal Diameter Quantity 4 Apex Chassis. At APEX we like to say our quality is not consistent, it's constantly evolving. We rely entirely on engineering, in-house and off-road testing as well as customer feedback to decide on the best design and materials to choose.

Tired of constantly having to re-torque your jam nuts? Our, APEX exclusive, Ninja Lock Washer is designed to secure a jam nut to an adjusting sleeve / rod. Suitable wherever a hex jam nut needs to be mechanically secured onto a hexed adjusting rod. The size indicated is the internal diameter (eg the size of shank it will fit).