Tenders for Supply of Key Bolt With Nut, Spring Washer And 4 Mm Dia Split Pin To Rdsos Drg. No. Sk. 69594, Item No.9, Alt. No. 36 Thirty Six. Material And Specification As Per Drg. Hex Nut M-20 Property Class-5 And Split Pin Size Dia 4 X 30 Mm Long. Warranty Period: 30 Months After The Date Of Delivery