... 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 ... Hot forming, with or without heat treatment7) Finish Treatment: Plain, Black, ZP ( white, bluish, Yellow), HDG8) Packing: In ... export costs for customers.”Small profits and quick returns”11) Promises: quality is life, service is fundamental , ...