Square Nut Size: M6--M36 Grade: 4,5,6,8,10,12 Materials: carbon and alloy steel Hot Dip Galvanized Supply ADSS/OPGW Electric power line fittings line hardware 1.NameSquare Nuts2.StandardDIN, IFI, ISO, JIS, AS,BS, EN, SAE,ASTM3.GradeGr.2,5,8,10, 2H, DH, /8/4.ThreadUNC, UNF, UNEF, M, BSW, BSF, TR, ACME, NPT 5.MaterialCarbon steel(#1035,#1045,40Cr,35CrMo,42CrMo,B7,20Mn2,M20) ,Stainless steel(303,304 ...