supply of set of hex. head bolt complete. , set of hex. head bolt complete (for fixing of vertical damper in rcf mainline coaches), consisting of the following 5 items as per rcf drg.no.cc05100, items - 19, 20, 22, 23 & 24 alt-g. 1). h ex. head bolt m20 x 120n (sh to is: 9549-1980) to is: 1364 (part-1) - 2002, b, 5.6, n, ce, coating as p er mdts-057 - qty./set. - 1 no. 2). hex. head bolt m20 x 190n (sh to is: 9549-1980) to is: 1364 (part- 1) -2002, b, 5.6, n, ce, coating as per mdts-057 - qty./set - 1 no. 3). split pin 4 x 36 to is: 549 - 2005, coating as per mdts-057 - qty./set- 2 nos. 4). spring washer b20 to is: 3063 -1994, coating as per m dts-057 - qty./set - 2 nos. 5). hex. nut (dc) m20 to is: 1364 (part-3) - 2002, 6, coating as per mdts-0 57 - qty./set - 2 nos. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]