Spring Washer Steel, M20 Mm. Matl.& Specn : Is: 3063 /1994 (Rev. 2) With Amend. 1 / 2 010 Or Latest, Type B. [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]