Tie Down Engineering 86206 Square U-Bolt, 1/2 inch-13 x 4 inch, Painted Steel, Pair

The Tie Down Engineering 86206 is a square-bend U-bolt used to mount roller brackets and other trailer hardware to a trailer frame or axle. It is sold as a matched pair, giving you both U-bolts needed for a single mounting point in one purchase. Each U-bolt is threaded 1/2 inch-13 and measures approximately 3-1/8 inches wide by 4 inches long, with a square bend shape that seats flush against square-tube trailer frame members for a secure, non-slip fit.

Construction is Grade 2 steel with a painted exterior finish for corrosion resistance in marine and trailer environments. The square profile distinguishes it from round-bend U-bolts and is intended for applications where the mounting surface is a square or rectangular tube rather than a round pipe or rod. This part is commonly used when replacing worn, rusted, or bent U-bolts on boat trailer roller brackets, bunk brackets, and similar frame-mounted hardware.

Specifications

• Brand: Tie Down Engineering
• Manufacturer Part Number: 86206
• Thread Size: 1/2 inch-13
• Width: 3-1/8 inches
• Length: 4 inches
• Shape: Square
• Manufacturer Grade: Grade 2
• Exterior Finish: Painted
• Fastener Type: Locknut
• Weight: 1.46 pounds
• Quantity: Sold as a pair

Frequently Asked Questions

What thread size is the Tie Down Engineering 86206 U-bolt? The 86206 U-bolt has a 1/2 inch-13 thread.

What are the dimensions of the 86206 U-bolt? It measures approximately 3-1/8 inches wide by 4 inches long, with a square bend.

How many U-bolts come in a package? The 86206 is sold as a pair, so one package includes two square U-bolts.

Is the 86206 a square or round U-bolt? It is a square U-bolt, made to fit flush against square-tube frame or bracket surfaces rather than round pipe.

What material is the 86206 U-bolt made from? The 86206 is a Grade 2 steel U-bolt with a painted exterior finish for corrosion resistance.

What is the 86206 U-bolt typically used for? It is used to mount roller brackets and similar trailer hardware to a square-tube trailer frame or axle.

Does the 86206 come with locknuts? Yes, the Tie Down Engineering 86206 uses a locknut fastener type.

How much does the 86206 U-bolt pair weigh? The pair of 86206 U-bolts weighs 1.46 pounds.

What is the difference between the 86206 and the 86207 U-bolt? The 86206 and 86207 are both square U-bolts from Tie Down Engineering but are different part numbers with different dimensions, so they are not interchangeable; confirm the exact width and length needed before ordering.

Will the 86206 fit a round trailer frame tube? No, the 86206 has a square bend and is designed for square-tube mounting surfaces, not round pipe.