Tenders for Supply of 3/4 19.05 Mm Dia Zinc Plated/Galvanized Lock Bolts With Collar, Grip No. 20 With Grip Range 31. 75-38.10 Mm. Material And Specification : Rdsos Spec No: Is/Rdso-Wd/0001: 2022. Warranty Period: 30 Months After The Date Of Delivery