Kit of Fasteners for CBC of coaching stock., Item, 1 Hex. Head Bolt M16 X 55 mm with HT M16 Nylock Nut, Qty/ Set = 16 nos., 2 HT Hex Head Bolt M20 X 50 mm, Qty/ Set = 04 nos., Drawing No.:--------, Material/ Specn.: All Hex. Head Bolts should be of IS: 1364, Part 1/ 2023 and Property Class 10. 9 and all Nylock Nut to IS: 7002/ 2018, Grade 10 with White Zinc plated.