supply of hex head bolt castle nut with washer and split pin (each 01 no.) as per ref.no.1 to 4 of els/lgd drg.no.c/els/lgd/bogie/3/131 alt-1.hex head bolt castle nut with washer and split pin (each 01 no.) as per ref.no.1 to 4 of els/lgd drg.no.c/els/lgd/bogie/3/131 alt-1.,hex head bolt castle nut with washer and split pin (each 01 no.) as per ref.no.1 to 4 of els/lgd drg.no.c/els/lgd/ bogie/3/131 alt-1. rdso modification no.rdso/2015/el/ms/0441 rev.%u20190%u2019, dt.18/08/2015 as per drg.no. ref.no.1 to 4 of els/lgd drg.no.c/els /lgd/bogie/3 specn: nil [ warranty period: 30 months after the date of delivery ] ] => limited