... *Nuts Material:4.8-12.9 grade stainless steel DIN934 hex nuts ,A.Product specifications Nuts StandardASME ... ISO4032,ISO4033,ISO4034,JIS B1181,UNI 5587,HG/T 20614,ASME B18.2.2,DIN6915,EN 14399 ... ,DIN6334,ASME B18.2.2,BS916,DIN 439,DIN 936,ISO4035,DIN 971,ISO 8673,ISO 8675,etcNuts ... Al6061, Al6063 etc.7.Carbon steel:C1010,C1018,C1022,C1035K,C10458.Alloy steel: SCM435,10B21Nuts Surface treatment Plain, ...