Tenders for Supply of 1/2 12.7 Mm Dia Bull Lock Bolt Pin Round Head And Collar Zinc Plated Standard, 1612, Grip Range 0.750 - 1.000 18-25Mm, Confirming Other Technical Requirement As Per Rdso Drg. No. Wd-11036-S-01, Alt-1 Or Latest And Wd-11036-S-02 Alt-Nil Or Latest.