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4Pack 1/2' x 3-1/16'x 4-5/16' Stainless Steel U-Bolts, Square U-Bolt Boat Trailer U-Bolts with Washers and Nuts for Sailboat Trailer Automobiles Industrial Part.

4.7 (8) Write Review
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$25.64

$ 11 .99 $11.99

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About this item

  • We're thrilled to include these fantastic components in your order: (4) U-bolts, (8) heavy hex stainless steel nylon lock nuts, (8) flat washers, and (8) lock washers
  • Stainless steel material: u bolts for boat trailer are made of 304 stainless steel, strong and long-lasting.square u-bolt is applied to fix or connect the locked parts to rectangular wood and metal objects, such as cars, sailboat trailers, pipe, tube, plumbing and other industrial applications
  • This U-bolt is the perfect size for your needs at 1/2 x 3-1/16 x 4-5/16 inch (Approx. 13mm x 78mm x 110mm)(D x W x L), with a thread length of 2-1/2 inches (Approx. 63.5mm) It's ideal for use with 3 x 3 inch square beams and shafts! Product tolerance ±0.8mm
  • Here are some tips to make your installation a breeze! You'll get the best results using a hand wrench or socket ratchet when installing the nut. For the tightening, avoid using a high-speed power tool or impact tool
  • We're delighted to offer a one-year warranty on our U-bolts! If you have any questions, please don't hesitate to send us an email via Amazon. We'll respond within 24 hours and solve any issues you may have
  • These fantastic screws are made from 18-8 stainless steel, which means they're super strong and can withstand a lot of wear and tear. They're also resistant to a range of chemicals, and they might even have a little bit of magnetic power


Product Description

Product information

Material Stainless Steel
Exterior Finish Stainless Steel
Manufacturer Grade Grade 304
Head Style U-Bolt, Square, Flat
U-bolt size 1/2 x 3-1/16 x 4-5/16 Inch (D x W x L)
Brand Name KATUNA

Our U-Bolt

About this item,Package includes: stainless steel u-bolt set include 4 pieces u-bolts, 8 pieces stainless steel flat washers, 8 pieces stainless steel nylon lock nuts, 8 pieces lock washers, all accessories are made of 304 stainless steel!

U-bolt

nylon lock nuts

lock washers

flat washers

Choose Us

U Bolt for boat trailer

Our Advantages

U Bolt for boat trailer

Our product specifications

U Bolt for boat trailer

Maurice bailey
Reviewed in the United States on February 17, 2025
very nice, just what i was looking for fits perfectly !!
Ronda B.
Reviewed in the United States on January 6, 2025
Heavy duty material
Compass
Reviewed in the United States on January 29, 2025
EXTREMELY sturdy, well made, no issues with corrosion and good quality nylock nuts.They exceeded my expectations for what I thought was going to be a cheap, made overseas product that was the least cost option. Instead I feel like a got a premium, well made product that's going to hold the item I installed with it until the end of the world!
Timothy
Reviewed in the United States on January 22, 2025
Good quality hardware that is packed nicely
Jim B.
Reviewed in the United States on March 20, 2024
I used these as anchors in cement in order to chain down some ladders. They worked great for this purpose (the 304 stainless is resistant to corrosion by the chemicals in concrete). However, all the hardware was there and nicely packed separately in resealable plastic bags for attachment to trailers or other items as required. These are strong and should be able to pull a substantial load, but note that the while the threaded end is within a few thousandths of the stated 0.5 inch, the shank is more like 0.45 inch. Still, based on some online analysis, this should be able to tow many tons.
Sarah M.
Reviewed in the United States on December 5, 2024
These fit on my 3500 lb axle like the ome ones I replaced. Comes with washer, lock washer, and lock nuts. Also, worked just fine with the OME five hole plate. As with all stainless steel bolts use hand tools to tighten up and install. Do not use an impact or screw gun.
Crash_Wagner
Reviewed in the United States on December 3, 2024
Well made, I’m use to clumsy manufacturing, this isn’t that, well made, polished and accurate, almost like someone has pride in their work. Also provided double locks, lock nuts with lock washers, you don’t see that very often either. Good job! That is all, Ed out!
Larry c. Kelley
Reviewed in the United States on December 19, 2024
Items are substantially made and are well worth the cost.