... anchor bolt 1.Material:Q235, Alloy steel, SS 2.Standard:DIN,ANSI,BSW, JSB ans ISO 3Grade:4.8,5,10 ... Bolt1. Material:Carbon steel, Alloy steel, stainless steel. 2. Standard:DIN,ANSI,BSW, JSB ans ISO standard.3. Grade Grade4.6 ... further question please contact woth me elevator expansion anchor bolts with nuts and washers