Check your eligibility criteria for tender Supply of 5/8 Inch 15.87Mm Dia Zinc Plated/Galvanized Lock Bolt With Collar Part No. 2020 With Grip Range 3 1-38 Mm. One Set Consisting Of 01 Nos Lock Bolt & One No. Collar. Base Metal- Steel, Astm B633 & Astm B695 & Astm B117 Minimum 48 Hrs. Lock Bolt Should Have Hardness In A Range 28-34 Hrc & Collar Have A Hardness I N A Range Of 60-80 Hrc. Accepted: Hardness Of Collar Should Be 60-80 Hrb In Place Of 60-80 Hrc, As Per Rds O Drg. No. Wd-11036-S-01, Alt-1 & Wd-11036-S-02, Alt-Nil Or Latest And Confirming To Spec. Is/Rdso-Wd/0001: 2022 Of June 2022 Or Latest. Warranty Period: 30 Months After The Date Of Delivery