Nuts: Hexagon nuts, hexagon coupling nuts, hexagon thin nut, square nut, hexagon castle nuts, self locking nut, hexagon domed cap nuts. Stainless Steel Grade: 304, 304L, 304H, 309, 310, 310S, 316, 316Ti, 316 L , 317, 317L, 321, 347, 347 H, 904L Nickel Alloy Grade: Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201),Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825),Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601),Hastelloy C 276 (UNS No. N10276),Alloy 20 (UNS No. N08020),Titanium (Grade I & II)