Spring Lock Washer B20 To Specification Is 3063 : 1994 (Re-Affirmed 2021), With Amendment No. 1 Of Jan 2010 And Material Specification To Is 4072: 1975 (Re-Affirmed 2022), Read With All Amendments , Gr. 3, Galvanised To Specification Is 1573 : 1986 (Re-Affirmed 2021) To Service Gr. No. 02 Of Table. [ Warr Anty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]