supply of fish bolts & nuts of size 25 mm x 140 mm for 60kg rail, rdso drg. no. t-1899, specification : irs t-23-2021 ( redrafted ) with latest alterations. the term latest alterations wherever used will be mean the alteration up to the actual date of opening of tender. [ warranty period: 30 months after the date of delivery ] , fish bolts & nuts of size 25 mm x 140 mm for 60kg rail, rdso drg. no. t-1899, specification : irs t-23-2021 ( redrafted ) with latest alterations. the term latest alterations wherever used will be mean the alteration up to the actual date of opening of tender. [ warranty period: 30 months after the date of delivery ] , fish bolts & nuts of size 25 mm x 140 mm for 60kg rail, rdso drg. no. t-1899, specification : irs t-23-2021 ( redrafted ) with latest alterations. the term latest alterations wherever used will be mean the alteration up to the actual date of opening of tender. [ warranty period: 30 months after the date of delivery ] , fish bolts & nuts of size 25 mm x 140 mm for 60kg rail, rdso drg. no. t-1899, specification : irs t-23-2021 ( redrafted ) with latest alterations. the term latest alterations wherever used will be mean the alteration up to the actual date of opening of tender. [ warranty period: 30 months after the date of delivery ]