Supply Of Hook Bolts Size 28mm(dia.) X 400mm (length) As Per Rdso T-b-1636/1 (with Provisional Of S Plit Pin), With Alt. And For Steel Channel Sleeper. Each Hook Bolt Consists - (i) 2 Nos. Nut For 28mm Dia. Hoo K Bolts (ii) 3 Single Coil Spring Washer Is 3063-1972, For 28mm Dia. Hook Bolts. (iii) 2nos. Plain Washer T-0 23(m), For 28mm Dia. Hook Bolts. (iv) 1 Nos. Tapered Split Pin 4mm Dia. [ Warranty Period: 30 Months Aft Er The Date Of Delivery ]