... hexagon nut Size:M3 to M45 Class/Grade: 5, 8, 10 Surface: PL, ZP, YZP, HDG, bronze Standard: ... 5, grade 8UNC and UNFStandard hex nut, hex jam nut, heavy hex nut, heavy hex jam nutASTM A194 2H, ... , Cr3+,Cr6+4. Other Material Options for hex nut:Stainless Steel SS201, SS301, SS304, SS316Grade A2-70 ... available, Nickle, Zinc Alloy, Brass, etcIn Stock Hex Nut Available (below sizes only)M6, M8, M10, M12 ...