#4 Flat Washers, .130" Inside Dia, 5/16" Outside Dia, .034" Max Thickness, 18.8 Stainless Steel

Flat Washers are a thin, flat, circular steel part with a centrally located hole. Washers are designed for assembly around a bolt or screw, between the bearing surface of the fastener and the part to which it is attached. Flat washers are used to improve stress distribution and to span large clearance holes. 18.8 stainless steel flat washers are designed for use with 18.8 stainless steel screws and nuts in general industrial applications where parts are subjected to corrosion.