Seadog 273265-1: Side Mount/Slide Black 2/CdTrack Mount Hinge Fittings provide slide adjustment for the convenient use and storage of Bimini top frames. Designed to attach an eye end. Use Side Mount Sliders for vertical mounting. Functions as an alternative to a brace kit. UV stabilized injection molded nylon construction. 1/4″ pin size. For use in 0.850 or 1.050 track.