Hex Head Bolt Size M16 X 170 -10.9 To Specn Is:1364 (Part-1)Latest And Materia L To Specn Is:1367(Part-3)Latest And Zinc Electroplated To Grade A3L Of Annex-E Of Is:136 7(Part Eleven)Latest. [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitt Ed: Max 8 Lacs ] ]