... M4 to M56 MILD STEEL/MS DIN 934 hex nuts hot dip galvanized/ HDG, sizes from M4 to M56 Product Catalog :1) ... 4 Material: Mild Steel ( SAE 1008, LY, Q195, ML08 )Hot forged, sizes: M20-M56; 3/4”- 2-1/4”Grade ... to 3000mm)Grade 4.8 6) Processes: Cold forging and Hot forming, with or without heat treatment7) Finish Treatment: Plain, ... back guaranteed. MILD STEEL /MS DIN 934 HEX NUTS HOT DIP GALVANIZED/HDG