Hexagon Nut -Is:1364(Part-3)2002 - M22- 6 And Galvanised To Is 1573/86 To Ser Vice Grade No 2 Of Table 2. [ 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 ] ]