Procurement Of Bolt Hex Head And Nut 22 X 150 Etc., Hex. Head Bolt And Nut 22 X 150 Mm Of Production Grade %U2018c%U2019 To Is: 1363 ( Part-1 ) / 2002 ( 4Th Rev. ) Property Class 4.8 For Bolt And Is: 1363 ( Part-3 ) / 2002 ( 4Th Rev. ) Property Class 4.5 For Nut. [ Warranty Period: 30 Months After The Date Of Delivery ]