1.Factory direct selling 2.Material:904L/304/316L/317L/317/2205/2507/C276/MONEL400 3.Standrad:DIN931/DIN601 4.In ... hex bolts and nuts with all sizes are also available. 2.Materials option: Stainless Steel C276, 904L, 304, 304L,310S, 316, 316L, 321, 317L, 2507, 2205 ... , 254SMO, AL6XN, 1.4501,1.4529.Super duplex stainless steel F55, F51,F53 HastelloyB&C, Inconel ...