Seasense Swivel Bolster Brackets

Seasense
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Make easy work of mounting a bunk board on to the boat trailer with these Seasense Swivel Bolster Brackets. These brackets feature mounting slots for easy adjustment of height and has dimpled surfaces to minimize unwanted movement and prevent sliding.

These top angle brackets can be easily installed on to the trailer’s frame with the included nut and 1/2" bolt. They are made of 11-gauge heavy-duty galvanized steel for rust and corrosion resistance.

  • Galvanized steel construction
  • Features non-slip dimples
  • Slotted for vertical adjustments

Features of Seachoice Swivel Bolster Brackets

  • Secure hold
  • Includes nut and bolt for mounting
  • Mounts with 1/2" bolt
  • Pivots for angled or flat mounting

Specifications

Manf. Part # 50081018

  • Type: Bolster bracket

Manf. Part # 55300

  • Fits 5531,5533 & 5535 brackets
  • For 2" x 6" bunk or bolster boards
  • Bracket angle: 3.5" W


Seachoice U-Bolt APPLICATION CHART

Frame Size U-Bolt
Model No.
2"(5.08cm) 5721
3"(7.62cm) 5722
4"(10.16cm) 5724
Bolster Bracket - Seasense
Bolster Bracket 10" x 2.5" x 2.5" - Seasense

Bolster Brackets are heavy duty hot dip galvanized. Designed to support bolster or bunk boards. Slotted for vertical adjustments and feature non-slip dimples to avoid movement and increase load capacity. Product dimension 10" length by 2.5" by 2.5"

 
8" 6.75" X 9.25" X 11.5"
6.75" X 9.25" X 11.5"
 
10" 6.75" X 9.25" X 11.5"
6.75" X 9.25" X 11.5"
Swivel Bolster Angle Bracket for 5531, 5533, & 5535 Bracket angle 3.5
Swivel Bolster Angle Bracket ONLY for 5531, 5533, & 5535 Bracket angle 3.5" W Seachoice
  • Angle Bracket ONLY For (5531,5533 & 5535)
  • Heavy 11 gauge galvanized steel that is slotted for vertical adjustment. Non-slip dimples for secure hold. Angle bracket pivots for angled or flat mounting of 2" x 6" bunk or bolster boards. Mounts with 1/2" bolt. Bracket angle 3.5" W.
  • Average Customer Review for 6" X 9.25" X 17.75"
    Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
    Full StarFull StarFull StarFull StarFull StarReview for 6" X 9.25" X 17.75"
    by a Customer on September 25, 2008
    These bunk supports are heavy duty and well galvanized. The "locking" ridges are an excellent design to keep the lifts right where you set them. The problem of getting equally strong and properly fitting square u-bolts. My Trail-Rite came with 7/16 sq. u-bolts. They fit the frame perfectly. Where are such bolts available.
    Was this review helpful?
    Full StarFull StarFull StarFull StarFull StarSwivel
    by Andres from Stroudsburg, Pennsylvania on November 18, 2014
    Heavy duty product, great product
    (1 of 1 people found this review helpful)
    Was this review helpful?
    Full StarFull StarFull StarFull StarFull Starangle brackets
    by Sue from Augusta, Georgia on May 24, 2014
    Pleased to find angle brackets on I boat site. Always seem to find what I need here.
    (1 of 1 people found this review helpful)
    Was this review helpful?
    Full StarFull StarFull StarFull StarFull Starjust what i wanted
    by Wayne from Battleford, Saskatchewan on December 09, 2011
    perfect fit for 2x6 board
    (1 of 1 people found this review helpful)
    Was this review helpful?
    Q:
    How long is the bracket (length)?
    A:
    It's a 10 inch bolster bracket.
    Q:
    How wide is bracket?
    A:
    According to Seasense, the width measurement of the bracket is 3-1/2".
    Q:
    Can you tell me what the (6.75 x 9.25 x 11.5) measurements are? What part of the bracket is each of these measurements?
    A:
    Those measurements are just listed for packaging. We can give info on brackets, but need to know which bracket you are wanting info on specifically. The 8", 55310 is 8" long and just over 2" wide. This particular one is 10" long x 3.5" width.
    Q:
    Length and difference from 8'' bracket?
    A:
    Seasense only has the 10" one. They are similar as they are both galvanized. One is just longer than the other though in the family view of products.
    Q:
    The picture shows this has both the bolster (for attaching to the trailer frame) and the bracket (for attaching to the bunk). Please confirm.?
    A:
    It is the bolster ans swivel bracket.
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