standard hex bolt 1)material:mild steel,45# steel,40Cr steel ... 8,8.8,10 hex bolt, hex head bolt, m16 hex head bolts, din933 hex bolt a2 stainlessCertification:ISO9001:2000High ... 0mm..Finishing:Zinc plated,phosphate,black Oxide...Outer Packing:Standard neutral carton box fastened with palletSatisfactory Services:we can ... Other services are consulted in dealing.Company Introduction standard hex bolt