Hillman 5/16 in USS Flat Washers Galvanized Steel ASTM A153 100 Pieces
• ASTM Specification: A153. Complete your fastening projects with Hillman Galvanized USS Flat Washers. • Product Type: USS Flat Washers. Designed for use with compatible fasteners, these flat washers help distribute load and provide a smooth bearing surface between the fastener and the material being secured.