7/8'' (22.2Mm) Dia Zinc Plated/Galvanized Lock Bolt With Collar (28G) With Grip Range (5 7-64Mm). Material And Specification : Rdso'S Str No: Is/Rdso-Wd/0001: 2022 Firm'S Offer-Firm'S Equ Ivalent Pi Lock Bolt Part No Lbrs-2836G And Collar Part No Lcss-28G. All Other Technical Requirements Will Be As Per Rdso Drawing No. Wd-11036-S-01 Alt 1 And Wd-11036-S-02 Alt Nil. [ Warranty Period: 30 Months After The Date Of Delivery ] ]