Seasense
Price: $5.81
Save: $1.18
(16% Off $6.99)
Part # 50081018
2nd Day Air for $2.99 More Eligible
SHIPS TODAY!* if ordered in 9 hrs 11 mins.
Hurry! Only 1 left in stock
Price: $10.60
Save: $2.05
(16% Off $12.65)
Part # 55310
2nd Day Air for $2.99 More Eligible
SHIPS TODAY!* if ordered in 7 hrs 11 mins.
No Reviews
Price: $12.75
Save: $1.50
(10% Off $14.25)
Part # 55330
2nd Day Air for $2.99 More Eligible
SHIPS TODAY!* if ordered in 7 hrs 11 mins.
No Reviews
Price: $13.64
Save: $1.61
(10% Off $15.25)
Part # 55350
2nd Day Air for $2.99 More Eligible
SHIPS TODAY!* if ordered in 7 hrs 11 mins.
Price: $3.73
Save: $0.72
(16% Off $4.45)
Part # 55300
2nd Day Air for $2.99 More Eligible
SHIPS TODAY!* if ordered in 7 hrs 11 mins.

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.
  • Full StarFull StarFull StarEmpty StarEmpty Star
    Based On 1 Review | Write Review
    Full StarFull StarFull StarEmpty StarEmpty Star
    Needs instructions
    by Nicholas from Ellwood City, Pennsylvania on August 09, 2016
    Great product, but it really needs some instructions. I hope I installed mine properly and don't have any issues. I just got what I could from the hardware store.
    (0 of 1 people found this review helpful)
    Was this review helpful?
    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 Star
    Review 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.
    (1 of 1 people found this review helpful)
    Was this review helpful?
    Full StarEmpty StarEmpty StarEmpty StarEmpty Star
    DECEPTIVE ADVERTISING
    by Robert from Saugerties, New York on August 03, 2017
    Unless you are a tech in the marine industry, you will get scammed by iboats too. The picture of the product i needed was the only picture next to the description. I ordered the part based on the picture iboats placed with the product. They sent me one small piece of the part pictured. IT IS DECEPTIVE SALES GAMES. Useless waste of time. When i called iboats customer service they just wanted to send me more products and charge me for them. They dont take responsibility for deceptive pictures of their products. I wanted a refund, and the smart ass customer service rep said she would be happy to help me, then left me on hold for ten minutes until i realized she had no intention of helping me at all. POOR SALES PRACTICE IBOATS DECEPTIVE
    (1 of 1 people found this review helpful)
    Was this review helpful?
    Full StarEmpty StarEmpty StarEmpty StarEmpty Star
    What you see is not what you get
    by Terrance from Aurora, Colorado on March 17, 2017
    This picture shows the lift piece and angle bracket. The wording and visual don't match.
    (1 of 1 people found this review helpful)
    Was this review helpful?
    Full StarFull StarFull StarFull StarFull Star
    Swivel
    by Andres from Stroudsburg, Pennsylvania on November 18, 2014
    Heavy duty product, great product
    (1 of 2 people found this review helpful)
    Was this review helpful?
    Full StarFull StarFull StarFull StarFull Star
    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.
    (3 of 3 people found this review helpful)
    Was this review helpful?
    Full StarFull StarFull StarFull StarFull Star
    just what i wanted
    by Wayne from Battleford, Saskatchewan on December 09, 2011
    perfect fit for 2x6 board
    (2 of 2 people found this review helpful)
    Was this review helpful?
    Q:
    How long are they?
    A:
    Keep in mind this is the angle bracket only (so that top piece on this pictured bolster). It is 3-1/2" long.


    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.


    Ask a question
    Question & Answer Guidelines
    This product ships in 1 business day.
    Add to Cart and enter your Postal Code to determine the shipping charges.
    Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
    Standard Shipping Policies