Products OthersSlide Back Heavy Duty Top Slide & Top Cap Assembly 156-66155-00 P/N:156-66155-00 Tube O.D.:1"(25.4 mm) Pin Size: 5/16"-18(8 mm) Wt.(g): 280 With 1/4-28 Set Screws You May Also Be Interested In Track Slide 156-45201-00 Replacement Nylon Car Liner 956-74001-00 Electric Capstan 756-97151-00 Eye Plate 956-03635-00