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Tie Down Engineering 86029 Zinc-Plated Boat Trailer Roller Shaft 5/8" x 9-1/4" with Pal Nuts

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

86029
07/13/2036 10:43 AM
Sale Price

$8.42

In Stock (10)

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Product Details

The Tie Down Engineering 86029 is a zinc-plated steel roller shaft designed as a dependable replacement component for boat trailers. Measuring 5/8" in diameter x 9-1/4" in length, this shaft is precision-built to mount standard bow and keel rollers on trailer frames, providing a stable and secure pivot point for smooth trailer operation.

Constructed from zinc-plated corrosion-resistant steel, this roller shaft is engineered to withstand exposure to both fresh and saltwater environments, resisting rust and corrosion for extended service life. It is an ideal solution when replacing worn, bent, or rusted pins during seasonal trailer maintenance or refurbishment.

Key Features:

  • Zinc-plated steel construction for corrosion resistance in fresh and saltwater environments
  • Shaft diameter: 5/8" — compatible with standard boat trailer roller brackets
  • Shaft length: 9-1/4"
  • Includes 2 pal nuts (cap nuts) for secure, stable assembly
  • Drop-in replacement for standard bow and keel roller brackets
  • Manufactured by Tie Down Engineering — USA-based manufacturer established in 1969

Each kit includes the roller shaft and two pal nuts, providing everything needed for a straightforward installation. Tie Down Engineering part number 86029 (also referenced as 241-86029).

It was very simple to order the part I needed.

Fast shipping great product!

Easy transaction and fast free shipping. Can't ask for more.

Item was delivered on a pallet that appeared to have had a lot of care !

100% perfect all around, i will purchase from them again !!

It's the information I needed for my boat motor. The only issue I had with this maintenance manual was the way the manual was finished. I've worked the the graphic arts industry for 50 years and am well versed in print finishing. The book will no doubt stay together, however there is excessive glue on the spine as the cover wraps around the front/back that distracts from the overall appearance.

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