... ,Stainless Steel,Brass , Aluminum 3)Accept customization Specifications of Square Washers: 1 Standard: DIN, BS, IFI ... -dip GalvanizingOur popular products of Square Washers: Square Washersunit:mm For screwsM8M10M12M16M20M22M24M27Features of Square Washers: 1) Surface Condition ... Include: cold punching, machining, CNC machine.Applications of Square Washers: 1) Agri machines2) Automobiles3) Earth-movers4 ...