This is a Hot Dipped Galvanized U-bolt measuring 1/2" x 3 1/16" x 4 5/16", Used to hold on various brackets on boat and utility trailers. Includes galvanized nuts, lock washers, and flat washers. This Size U-Bolt is most commonly see to mount either Bunk Brackets to a 3 inch by 3 inch cross member or to mount a 3 inch by 3 inch cross member to an I-Beam trailer Frame.
Finish: Hot Dipped Galvanized
Thread Size: ½-13
Inside Width: 3 1/16 inches
Inside Length: 4 5/16 inches
This U-Bolt size is the most commonly used boat trailer U-Bolt. The most common tubing that this U-Bolt would mount around would be 3" x 3" tubing. For example, using this U-Bolt with the Galvanized Vertical Bunk Brackets L Type or Swivel Top Boat Trailer Bunk Brackets would allow you to mount your bunk brackets to your trailers cross-member. In addition, this size U-Bolt would mount your Boat Trailer front V-Guide or Galvanized Boat Trailer Roller Brackets to your trailers cross-members.