We provide Tender Bidding Support for Manufacture And Supply Of Hook Bolts & Nuts Of Size 22 X 450 Mm With Nuts, Single Coil Spring Was Hers And Split Pin Of 4Mm Dia For Steel Channel Sleepers Confirming To Rdso Drg No.B-1636/1 With Latest Alteratio Ns As On Opening Of Tender And Conforming To Specification Is-2062-2006, E250 Gr-A For Hook Bolts, Specification Is:3063-1972 For Spring Washer And Specification Is:549 For Split Pin With Latest Alterations, If Any As On Opening Of Tender. Note: One No. Hook Bolt Includes 3 Nos. Single Coil Spring Washers Suitable For 22Mm Dia Bolts, 2 Nos. N Uts, 1 Nos. Split Pin.