Tie Down Galvanized Boat Trailer Roller Panel Bracket This Tie Down trailer roller panel bracket is constructed of one piece of 11 gauge steel with a hot dipped galvanized finish. Use this panel bracket with 4 trailer rollers with 12 or 58 roller shafts. Slots in the bracket allow vertical adjustment. Use 716 or 12 U-Bolts to secure to trailer frame. Sold in Pairs Uses 12 or 58 roller shaft Accommodate any size roller length Accepts 716 or 12 bolts Hot dipped galvanized for lasting protection Ma