The finishing washer has an increased bearing surface and the sunken design gives a clean appearance. The washer is designed for use with flat or oval head screws. The called out size is the inner diameter of the washer.
Finish Washers are designed to accommodate the heads of a countersuck screw in order to provide a finished appearance.
Prevents a nut, bolt or screw from pulling through the material
Stainless Steel is rust and water resistant for marine, bath and outdoor applications. Does not stain or corrode as easily as ordinary steel.