Hex Head Cap Screw M20 X 55 High Tensile. Material & Specification: Is: 2269 - 2006 Wit H Property Class-10.9 To Is:1367 (Part-3) - 2002 [ Warranty Period: 30 Months After The Date Of Delive Ry ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitt Ed: Max 8 Lacs ] ]