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Tie Down Engineering 81210 8-Inch Bolster Swivel Brackets for Boat Trailer Bunk Boards

Manufacturer

Tie Down Eng

<h3>Engineering Excellence for Trailer and Marine Applications</h3> <p>Since 1969, Tie Down Engineering has built a reputation as one of America's premier manufacturers of trailer components and marine accessories. Based in Atlanta, Georgia, this family-owned company operates from a massive 825,000-square-foot facility where advanced manufacturing technologies meet traditional American craftsmanship. With over 95 patents and more than 7,000 products in their portfolio, Tie Down Engineering represents decades of practical innovation designed to solve real-world challenges for boat owners, trailer operators, and commercial customers.</p> <p>What sets Tie Down Engineering apart is their commitment to in-house engineering and manufacturing. From CNC cutting and robotic welding to powder coating and rigorous testing, every product is designed and built in the United States. Their ISO 9001:2015 certification ensures that quality control standards remain consistently high across all product lines. This vertical integration allows the company to maintain strict oversight of materials, processes, and performance—critical factors when products must withstand demanding marine environments, heavy loads, and years of outdoor exposure.</p> <h3>Comprehensive Trailer Protection and Components</h3> <p>Tie Down Engineering specializes in critical trailer components that keep boats and cargo safe on the road. Their extensive selection of <a href="/6667-tie-down-eng-fenders-mounting-hardware-200397">fenders and mounting hardware</a> includes innovative bracket-less designs that simplify installation and provide clean, professional aesthetics. These high-density polyethylene fenders are engineered to resist UV degradation, impact damage, and harsh weather conditions, making them ideal for saltwater and freshwater applications alike. The company's <a href="/6667-tie-down-eng-fender-1380">fender</a> offerings accommodate various wheel sizes and trailer configurations, with reinforced construction that provides long-term durability even under demanding use.</p> <p>Safety remains paramount in trailer operation, which is why Tie Down Engineering produces robust <a href="/6667-tie-down-eng-safety-chains-cables-accessories-200888">safety chains, cables, and accessories</a> engineered to meet or exceed industry safety standards. These components serve as critical backup systems that protect against coupler failure, providing peace of mind during highway travel and boat launching. The company also offers a range of <a href="/6667-tie-down-eng-electronic-accessories-145">electronic accessories</a> and comprehensive <a href="/6667-tie-down-eng-trailer-parts-accessories-201094">trailer parts and accessories</a> that address everything from lighting and wiring to rollers, guide-ons, and mounting hardware. Each component is designed to integrate seamlessly with standard industry specifications, simplifying replacement and upgrade projects.</p> <h3>Built for the Marine Environment</h3> <p>Tie Down Engineering understands the unique demands of marine applications, where corrosion resistance and reliability are non-negotiable. Their trailer components are specifically engineered to withstand saltwater exposure, boat ramp immersion, and the constant moisture inherent in boating activities. Many products feature galvanized or aluminum construction, corrosion-resistant coatings, and sealed bearing systems that extend service life even in the harshest coastal environments. This attention to material science and protective finishes has made Tie Down Engineering a trusted name among boat dealers, marinas, and individual boat owners who demand components that won't fail when it matters most.</p> <p>The company serves diverse industries beyond marine and trailer applications, including manufactured housing, roofing, workplace safety, and agriculture. This broad manufacturing expertise translates into cross-industry innovations that benefit all product lines. Whether you're maintaining a boat trailer, upgrading safety equipment, or replacing worn components, Tie Down Engineering delivers the combination of American manufacturing quality, engineering innovation, and practical design that professionals and enthusiasts rely on for dependable performance season after season.</p>

Part Number

81210
07/13/2036 4:39 AM
Sale Price

$13.73

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Tie Down Engineering 81210 are 8-inch galvanized bolster swivel brackets designed to securely mount bunk boards or bolster boards to boat trailer crossmembers. Compatible with 2x4 and 2x6 wood bunk boards as well as Tie Down Engineering roller bunks, these brackets deliver a stable, adjustable foundation to protect your hull during trailering.

Key Features:

  • Slotted vertical adjustment — Features a 2-3/4" slot length for easy bunk board height customization to match your boat's hull profile
  • Non-slip dimples — Pressed-in dimples grip bunk boards to prevent shifting and increase load capacity
  • Hot-dip galvanized steel — Full galvanized finish provides long-lasting corrosion resistance in harsh saltwater and freshwater marine environments
  • Swivel design — Swivel brackets allow the bunk or bolster board to be angled correctly for proper hull support and alignment
  • 1/2" U-bolt compatible — Center slot accepts standard 1/2" diameter U-bolts for crossmember mounting
  • Complete hardware included — Each pair includes (2) bunk brackets, (2) swivel brackets, and (2) bolts with Nyloc nuts

Sold as a pair, the Tie Down Engineering 81210 bolster swivel brackets are an ideal replacement or upgrade for standard boat trailer bunk hardware, offering a durable and adjustable solution for reliable boat support on the water and on the road.

No shop around had the prop I needed. We had plans to fish but I hit a rock. The prop came in time to get back out on the water and get out limit!! Arrived next day!

Clean interface and website, makes looking/shopping a breeze!

we need to return item not needed how do we start that process?

Great

Wasn't happy with the extra charges for handling. Do not see that until I paid it.

I found the product I wanted, and the order was easy to complete. All info was clear and precise, so did not have to speak with anyone! Acknowledgement of the order was prompt and was filled and shipped almost immediately. Packaged well and received within a few days. I certainly will consider the seller should the time arise in the future.

Shipped and delivered quickly.

So far so good Quick and easy to order

Good experience, part was just as described

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