MILD STEEL/MS DIN 934 hex nuts black/BK, sizes from M4 to M56 MILD ... STEEL/MS DIN 934 hex nuts zinc black/ BK, sizes from M4 to M56 Product Catalog ... ISO4032 ISO4034 AS1112 BSW UNCGrade: 4 Material: Mild Steel ( SAE 1008, LY, Q195, ML08 )Hot forged, sizes: M20- ... Hot forming, with or without heat treatment7) Finish Treatment: Plain, Black, ZP ( white, bluish, Yellow), HDG8) Packing: In strong ...