Tenders for Supply of Plain Washer Punched Steel A 14 To Is:2016-1967Reaffirmed 2021, Suitable For M12 Bolt. Material : Steel To Is:2062-2011, Amendment No.1 Of Nov. 2012, Gr E250a, Galvanized To Is:1573-86 Reaffirmed 2021, Service Grade No.2 Of Table-2 Warranty Period: 30 Months After The Date Of Delivery