Stainless steel 304 Nut 1.Material:steel 304. 2.Part compatible with RoHS requirement. 3.Used in clean ... steel,Special material as customer's requirement; 202,303,304,316,ASTM A743, grade CN7M, CF8M,CF8,304L,316L ... ,430F,430,440A.2)Process:Investment casting, silicasol casting or lost wax casting, ... We wellcome any inquiry you may have for castings. 304 Stainless steel Nut