StandardsASTM/ASME/BS/DIN/BS EN ISO /JISMaterialMild Steel, Carbon Steel , Alloy Steel & Stainless Steel.Size rangeM6 to M64 in metric series¼†to 2-1/2†in imperial.Bigger sizes can be manufactured as per order.Typical grades & Standards DIN 125 ADIN 127 BDIN 9021ASTM F436 and F436MAny other specific grade can be manufactured upon request with short lead times.Ordering Information 1. Dimensions – Size.2. Standard and Grade.3. Finish (Black, GI, Yellow, HDG, Cadmium, Nickle,PTFE etc ).