This 10 inch Hot-Dipped Galvanized Swivel Top Bunk Bracket kit is designed for boat trailer bunk board set ups that commonly use Bunk Board 2 in x 4 in sets and also to adjust the angle to the contour of the boat hull. Typically, these adjustable swivel bunk board brackets are mounted to cross members in front and behind the axle, a common single axle trailer might have (4) of these. These galvanized 10 inch Bolster Brackets have slotted 1/2 inch diameter holes to accommodate 1/2 inch Trailer Bolts or Boat Trailer U-Bolts and comes with a zinc plated 7/16" x 1" bolt to mount the top bracket. The slotted holes allow you to adjust the height of the bunks. We offer these in 8 inch Bunk Bracket Swivel Top and 12 inch Bunk Bracket Swivel Top if you are needing a different height for your adjustment. The 10 inch measurement is the length of the bracket itself. Keep in mind when replacing the entire Swivel Top Bunk Bracket you commonly will also need new mounting Bolts or U-Bolts, and also may be needing replacement Bunk Bracket Lag Screws to re-mount your bunk boards if you are using a 2 x 4 or 2 x 6. There is an image that shows a Model of a Swivel Top Bunk Bracket attached to a 3 by 3 Cross-Member using a U-Bolt (This Does not represent how every swivel top is mounted, but just shows an example.) These Swivel Top Bunk Brackets are also commonly mounted to cross members that are C Channel in shape and have different dimensions. Measure your frame dimensions, or simply measure your previous U-Bolts if you are replacing with the same setup!
It is also not uncommon to see these towards the front of your Boat trailer as a second set of bunk guides for the bow of your boat. With this arrangement, you will usually have shorter lengths of 2 x 4 or 2 x 6 that are spaced closer together.
Swivel Top Bunk Bracket Project Check List:
| || Boat Trailer U-Bolts are used to mount your new Bunk Brackets to your trailers Cross Member, measure the height and width of your frame and select from Galvanized or Stainless Steel Trailer U Bolts in 1/2" Diameter.|
| || || Bunk Bracket Lag Screws are used to secure your boat trailers Bunk Boards to your Swivel Top Bunk Bracket, available in stainless steel and galvanized. |
| || || Marine Bunk Board Carpet is used to wrap your boat trailers bunk boards to protect your boat hull from damage, available in several different widths for 2" x 4" and 2"x 6" boards. |
| || || Boat Trailer Bunk Boards are used to support your boats weight and assist with loading and unloading and are mounted directly to the Bunk Bracket with Lag Screws. |