Supply Of 7/8 Dia Lock Bolt, Pin Round Head & Collar Zinc Plated Standard 2844, Grip Range 70-77mm, Confirming Other Technical Requirement As Per Rdso Drg.no. Wd- 11036-s-01, Alt-1 And Wd-11036-s-02, Alt-nil. As Per Specification No. Is/rdso- Wd/0001:2022 Of June 2022..