Tie Down Galvanized Boat Trailer Roller Panel BracketThis 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 1/2" or 5/8" roller shafts. Slots in the bracket allow vertical adjustment. Use 7/16" or 1/2" U-Bolts to secure to trailer frame. Sold in Pairs Uses 1/2" or 5/8" roller shaft; Accommodate any size roller length; Accepts 7/16" or 1/2" bolts; Hot dipped galvanized for lasting protection; Made in USA; Specifications: Part No. Roller Size Width Between Slots Bracket Width 86150 4" 2" 4-3/8" 86151 5" 3" 5-3/8" 86152 8" 6" 8-3/8" 86153 12" 10" 12-3/8"