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4 Set Stainless Steel Square U Bolt Kit for Boat Trailer, Heavy Duty U-Bolt with Nuts and Frame Plate for Automobiles Trailer, Ski Boat, and Sailboat Trailer (1/2' D x 3-1/16'W x 4-5/16'L)

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$25.99

$ 12 .99 $12.99

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About this item

  • U-bolt size: 1/2"D x 3-1/16"W x 4-5/16"L (D x W x L), thread length: 2-1/2 inches, suitable for 3 x 3 inch square beams and shafts
  • Our u-bolt is made of 304 stainless steel, which is effective against corrosion and oxidation, and is extremely hard and durable. It’s ideal for long-term outdoor use.
  • Our products are made of high quality stainless steel materials and installation is very convenient, find the corresponding size of the beam and shaft, and use the tool to fix it. A single u bolt can support 4000lb of pull.
  • Package includes: 4*square U-bolts, 8*nuts, 8*flat washers, and 8*lock washers.
  • Widely Applications: It is suitable for fixing and connecting rectangular wood and metal parts. Such as boat trailers, Trailer axle leaf springs, mast, industrial projects, construction, etc.



Product Description

square u bolt

MOOKEERF
About us

MOOKEERF is a professional brand of communication accessories. We have been focusing on research and development of communication accessories for 10 years. The products sold include coaxial cables, connectors, antennas, power dividers, etc.

304 Stainless Steel U Bolts

Made by ture 304 stainless steel, suitable for fixing and connecting rectangular wood and metal parts.

  • Anti corrosion and oxidation
  • Heavy duty hardware
  • Easy to install
stainless steel u bolt

chuck l.
Reviewed in the United States on February 27, 2025
looked perfect for what i needed.unfortunately the nuts locked up half way down.had to cut off and use differents nuts on the one i had left.by american
erik flaherty
Reviewed in the United States on February 11, 2025
These are not capable of taking the correct torque specs trailer axle leaf springs require. They strip out long before you get close to the required torque. Do yourself a favor and spend the extra money and get good ones. Your boat or four wheeler ect will thank you when it’s not upside down in the ditch because of U bolt failure.
Alexandra Smith
Reviewed in the United States on January 7, 2025
Seems there were metric nuts sent with these 1/2-13 u-bolts. Nuts screwed on smooth then locked down and ripped the threads off. Ended up chasing threads and buying 1/2-13 nuts from local part store for them to work.
AlexH.
Reviewed in the United States on September 3, 2024
I got these to use for attachments to my trailer's tongue. The work great and are high quality. First of all, they are true stainless steel! I have ordered other products that use that description but weren't. The lock nuts are a good feature also.
Wareco
Reviewed in the United States on September 17, 2024
As my headline says this is a nice set of stainless U Bolts. I liked that it came with stainless lock nuts instead of lock washers. I have more confidence in lock nuts than regular nuts and lock washers. I do not hesitate to recommend these U Bolts.
Daniel Dario
Reviewed in the United States on July 30, 2024
This kit is easy to install and provides a secure fit, making it an ideal choice for various trailer applications. Overall, a solid investment for your trailer needs.
Soloratov
Reviewed in the United States on December 8, 2024
As with any part like this, first warning is measure! I bought a different set of bolts and nope, not even close and a weird thread. These fit perfectly, and are the proper thread with proper bolts. Brand new so they haven't seen too much weather. Seem to be decent quality, so we'll see how they hold up.
Jessica
Reviewed in the United States on October 15, 2024
These seem well built. Comes with all the nuts and washers.
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