Machine Washer

Flat Machine washer’s prime function is to spread the bearing face pressure, clamp load, under a bolt or nut over a larger surface area, preventing damage. Washers are primarily manufactured to standard specifications in various sizes, materials and shapes. Flat washers are thin, flat and circular general-purpose washers with a centrally located hole. Internal and external shapes are normally round. The hole or outer diameter can be non-symmetrical depending on the function of the washer. Flat washer sizes are designated by the shank diameter of the fastener in which they form part of the assembly.