Spring Lock Washer B22 To Specification Is:3063-94 And Material Specification To Is:4072- 75 Grade - 3 With Amendment -02 Galvanised To Specification Is:1573-86 To Service Grade No - 02 Of Ta Ble - 2. All Three Is Specifications Are Attached. [ 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 ] ]