GradesBS 4320 , 4395DIN 125 , 126 , 127 , 128 , 434 , 436 , 417 , 1440 , 4320 , 4464 , 6797A , 6798A , 7349 , 7978A , 9021ISO 7089 , 7092ASTM F436 , F959Hill Washer , Plate Washer , Plate Template , Base PlateCoating StandardsEN ISO 4042 , EN ISO 10684 , BS EN ISO 1461 , ASTM B695 , Xylan™ , ASTM A153MaterialCarbon Steel , Mild Steel , Alloy Steel , Ferritic & Austentic Stainless SteelRangeM 6 to M64 & ¼” to 2.1/2” Related Product