7/8'' (22.22Mm) Dia Zinc Plated/Galvanized Lock Bolt With Collar (28G) With Grip Range(5 7-64Mm), As Per Rdso Drawing No.Wd: 11036- S- 1 , Alt.1 & Wd :11036-S-2,Alt Nil Or Latest, Material And Specification : Rdso'S Spec No.: Is/Rdso-Wd/0001: 2022 Or Latest. [ Warranty Period: 30 Months After The Date Of Delivery ] ]