1)Bolt:M6-M64 full thread or half thread Nut:M3-M64 hexagonal, flange washer:M3-M33 flat, big outside diameter, spring 2). Treatment: cold forging/hot forging 3) Materials option: Stainless Steel C276, 904L, 304, 304L, 310S, 316, 316L, 321, 317L, 2507, 2205, 254SMO, AL6XN, 1. 4501, 1. 4529. 4) Super duplex stainless steel F55, F51, F53 HastelloyB & C, Inconel, Incoloy etc. 5) Standards: GB, DIN, JIS, AISI/ASTM/ANSI/AMSE and BS EN, etc. 6) Packing: Cartons then pallet, or wooden box, or by clients' requirements 7) Exported countries: United States, Germany, Saudi Arabia, South Korea, etc. 8) factory price, accept small order and short delivery time Contact: Grance Liu Mobile:0086-18761846904 QQ:413558582 Email:grance@afcfastener.com