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 :1) Screws ... Hot forming, with or without heat treatment7) Finish Treatment: Plain, Black, ZP ( white, bluish, Yellow), HDG8) Packing: In strong gunny / PP ... % money back guaranteed. MILD STEEL /MS DIN 934 HEX NUTS BLACK/ BK