Tenders for Supply of Hexagonal Head Bolt & Nut Of Product Grade C, M.S. Black, Size: M20 X 120Mm. Matl. & Spec.: I S: 1363 Part - 1 /2019 5Th Rev. And Is: 1363 Part - 3 / 2018 5Th. Rev., Property Class 4.6 For Bolt And Prope Rty Class 5 For Nut. Warranty Period: 30 Months After The Date Of Delivery