supply of lock bolts size: dia 19.1 mm or 3/4 inch with collar, grip range 18 to 25 mm. one set consisting of 01 no. lock bolt & 01 no. collar (lock bolt part no. lbrs-2412 and collar part no. lcss-24g) as per rdsos drg. no. wd-11036-s-01 & wd-11036-s-02. material and confirming to spec. is/rdso-wd/0001:2022 of june 2022 or latest & specification as per drawing. the head of the lock bolts necessarily be marked with manufacturer identification. the marking on collar should be done on lower bottom surface.lock bolts size: dia 19.1 mm or 3/4 inch with collar, grip range 18 to 25 mm. one set consisting of 01 no. lock bolt & 01 no. collar (lock bolt part no. lbrs-2412 and collar part no. lcss-24g) as per rdsos drg. no. wd-11036-s-01 & wd-11036-s-02. material and confirming to spec. is/rdso-wd/0001:2022 of june 2022 or latest & specification as per drawing. the head of the lock bolts necessarily be marked with manufacturer identification. the marking on collar should be done on lower bottom surface.,lock bolts size: dia 19.1 mm or 3/4 inch with collar, grip range 18 to 25 mm. one set consisti ng of 01 no. lock bolt & 01 no. collar (lock bolt part no. lbrs-2412 and collar part no. lcss-24g) as per r dsos drg. no. wd-11036-s-01 & wd-11036-s-02. material and confirming to spec. is/rdso-wd/0001:202 2 of june 2022 or latest & specification as per drawing. the head of the lock bolts necessarily be marked wi th manufacturer identification. the marking on collar should be done on lower bottom surface. [ warranty period: 30 months after the date of delivery ] ] => limited