Flat Washers
// SKU N/AStructural Flat Washers F436
Structural Flat Washers, F436 is a structural hardened washer. Washers are used under the head or the bolt and provide a smooth bearing surface when tightened. The chemical, mechanical, and size requirements for a hardened washers are covered under the ASTM specification F436. Structural Flat Washers by Threadline Products, Inc.