This Heavy duty 8 3/4” Slotted Double U Bolt Bracket Kit is a great choice for trailers carrying a large boat. The lift height of this bracket depends upon how it is adjusted for each specific trailer application. This style of Bunk Bracket is referred to as a Swivel Top because the Top Angle portion can be adjusted at different angles to accommodate the contour of the boats hull.
Once set, the top bolt is tightened down and the Bunk Boards become fixed at that angle. This bracket is ideal for both light duty and heavier duty applications, with the added security of using (2) 3 x 4 Square U Bolts (included) to mount to your trailers cross members. The slots on this double u bolt bunk bracket are designed for 1/2″ diameter U Bolts.