Nickel Grade Fasteners Specifications ASTM A453 Gr.660 Class A B C D, UNS S66286 ASTM B564 Alloy N04400 Monel 400 ASTM B865 UNS N05500. Monel K500 ASTM B574 Gr. 276 UNS N10276 ASTM B446 Alloy NO6625 Inconel 625 ASTM B574 Gr.22, UNS N06022 ASTM B825 Alloy NO8825 Inconel 825 ASTM B473 Alloy 20, UNS N08020 DUPLEX STEEL FASTENERS ASTM A276 UNS S32760 Super Duplex ASTM A479 UNS32750 SUPER DUPLEX ASTMA240 UNS31803 DUPLEX 2205 ASTM A193 B8MLCuNA SMO254 High Tensile Alloy Steel Grades Studs Bolts Nuts ASTM A193 Gr. B7 ASTM A194 Gr. 2H ASTM A193 Gr. B7M ASTM A194 GR.2HM ASTM A193 GR. B16 ASTM A194 GR.7M ASTM A320 Gr. L7 ASTM A320 Gr. B8
