... : ASTM A194 2, 2H, 4, 7, 7M,8, 8M; A563 Gr. A, C, DHThread: M, UNC, UNFFinish: Black, H.D.GPacking ... Steel, SS304, SS316Grade: SAE J995 Gr.2. 5, 8; A563 Gr. A,B,C,DH,A194 Gr.2H,2HM,4Class:4, 5, 6 ... ; Metric SizeThread: M, UNC, UNFFinish: Plain, Black, Zinc Plated/ZP, Yellow Zinc Plated/YZP, HDG or acc. to the customers’ demand ... , or as customer's requirement. ASTM A194 2H nut/A194 GR 2H NUT