supply of (1) contact wire parallel clamp groove pg 1030-3 with gi bolt 16x50x38mm with nut spring washer (2) gi bolt size 16x50x38 mm, with nut, lock-nut, 2 plain washers and 1 spring washer (3) gi bolt size 16x65x38 mm, with nut, lock-nut, 2 plain washers and 1 spring washer(1) contact wire parallel clamp groove pg 1030-3 with gi bolt 16x50x38mm with nut spring washer (2) gi bolt size 16x50x38 mm, with nut, lock-nut, 2 plain washers and 1 spring washer (3) gi bolt size 16x65x38 mm, with nut, lock-nut, 2 plain washers and 1 spring washer,contact wire parallel clamp groove pg 1030-3 with gi bolt 16x50x38mm with nut spring washer, as per rdso drawin g no. eti/ohe/p/1030-3, rev-a, ri no.1031-3. make-core approved source only. [ warranty period: 30 months after the date o f delivery ] , gi bolt size 16x65x38 mm, with nut, lock-nut, 2 plain washers and 1 spring washer, confirmi ng to rdso spec. no. ti/spc/ohe /fasteners/ 0120 rev-1 (march- 2017) or latest. make- core approved source only. [ w arranty period: 30 months after the date of delivery ] , gi bolt size 16x50x38 mm, with nut, lock-nut, 2 plain washers and 1 spring washer, confirmi ng to rdso spec. no. ti/spc/ohe /fasteners/ 0120 rev-1 (march- 2017) or latest. make- core approved source only. [ w arranty period: 30 months after the date of delivery ]