supply of manufacture and supply of hook bolts & nuts of size 22 x 400 mm with nuts , single coil spring washers and split pin of 4mm dia for steel channel sleepers confirming to rdso drg no.b-1636 / 1 with latest alterations 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.nuts, 1 nos. split pin. sse / p.way / depot / kzj, scr telangana 900.00 numbers sse / p.way / depot / purna, telangana 260.00 numbers scr