Seachoice Swivel Bolster Brackets

Bolster Bracket - Seasense
Your Price: $6.05
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Part # 50081018 ValueShip™ Eligible
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Swivel Bolster Angle Bracket for 5531, 5533, & 5535 Bracket angle 3.5" W Seachoice
Your Price: $3.91
Save: $0.54
(12% Off $4.45)
Part # 55300 ValueShip™ Eligible

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 ½" 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 ½" bolt
  • Pivots for angled or flat mounting


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


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

Swivel Bolster Angle Bracket for 5531, 5533, & 5535 Bracket angle 3.5" W Seachoice
Swivel Bolster Angle Bracket for 5531, 5533, & 5535 Bracket angle 3.5" W Seachoice
  • Angle Bracket 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. Complete with nut and bolt for angle bracket. Mounts with 1/2" bolt. Bracket angle 3.5" W.
  • Swivel
    by Andres from Stroudsburg, Pennsylvania on November 18, 2014
    Heavy duty product, great product
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    angle 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.
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    just what i wanted
    by Wayne from Battleford, Saskatchewan on December 09, 2011
    perfect fit for 2x6 board
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