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The Best long u bolts of 2022 – Reviews & Buying Guide

After hours researching and comparing all models on the market, we find out the Best long u bolts of 2022. Check our ranking below.

2,482 Reviews Scanned

SaleRank No. #1
Buyers Products UB623516 16 Inch Square Bend U-Bolt Kit, 4 Complete U Bolt Kits, 5/8" Bolt, 1/2" x 4 1/4" Tie Bars, Grade 5 Equivalent Hardware
  • Easily install truck boxes with this complete Grade 5 hardware kit, including forged steel tie bars for superior strength and durability
  • Choose from various lengths in the Buyers Products U-Bolt Kit with tie bars, perfect for securely connecting truck bodies to diverse truck chassis
  • Comprehensive kit includes four 5/8 in. square bend U-Bolts, eight 5/8 in. hex nuts, and split lock washers, ensuring reliable assembly
  • Built with 1/2 in. thick forged steel tie bars for robust support, ideal for securely mounting truck boxes and connecting bodies to truck chassis
Rank No. #2
METALLIXITY U Bolts 2 Sets (M8x44x129mm), Round U Bolt 304 Stainless Steel with Accessories - for Construction, Pipe
  • [1]: APPLY TO - Round U-Bolt is good for fixing the locked object to pipe or wood, etc. Fits for trailers, plumbing, and other home and industrial applications, etc.
  • [2]: SPECIFICATION - Fit Object Size: 44mm /1.73"; Thread Size: M8(D); Bolt Rod Size: 7mm(D) /0.28"; Total Length: 129mm(H)/ 5.08"
  • [3]: DESIGN - U-shaped, with threads at both ends, and is usually connected with nuts and washers to form a fastening device. (Please pay attention to see what accessories are included in the package)
  • [4]: ADVANTAGE - U bolt made of 304 stainless steel, constructed with good performance in anti-rust and corrosion resistance, which have a stable connection.
  • [5]: QUANTITY INCLUDED - 2 x U-Bolt, 4 x Nuts, 4 x Washers, 2 x Plates
Rank No. #3
Racewill 4pcs Extended Square Bend U-Bolts 8.5" Long x 2.5" Wide x 9/16" Threads with Hardware
  • Extended Square Bend U-Bolts are designed for 1-2 inch lift applications. Please measure the size of your existing u-bolts before purchasing.
  • Heavy-duty U-bolts help secure the spring assembly, ensuring the assembly is in the correct position and remains stable.
  • Heavy-duty square U-bolt 8.5" Long * 2.5" Wide * 9/16" Threads, 4.84" Thread length, 9/16" Thread pitch.
  • Square bend U-Bolts is heavy-duty steel construction for maximum durability and provide no lift.
  • Square U-bolt kit includes 4*square bend U-bolts, 8*nuts and 8*washers.
Rank No. #4
Torch 12.5" Square Extended U Bolts Extra Long 2.5" Wide 9/16" Ubolt with Hardware
  • FITS: Many applications. Please message us if you have any questions
  • CONTENTS: 4x Square U-Bolts (measurements are from inside the bend 12.5" long and 2.5" wide)
  • INSTALLATION: Bolt on kit.
  • Lifetime Warranty. Dedicated Customer Service.
  • NOTES: Please measure your existing U bolts before purchasing to ensure these U bolts are correct for your application. Please message us if you have any questions.
Rank No. #5
National Hardware N222-364 2192 Square U Bolts in Zinc, #535-5/16"x2"x5"
  • National Hardware's 5/16"x2"x5" Square U Bolt is designed for securing various products to rectangular wood and metal objects.
  • Manufactured from stainless steel for durability.
  • Nuts included for easy installation.
  • For interior and exterior applications.
  • If plates are required use National's N222-323 plates.
Rank No. #6
Dunzy 4 Pcs Square U Bolts Zinc Plated, Heavy Duty Carbon Steel U Bolt Industrial and Scientific Supplies for Boat Trailer Tube, Rectangular Wood and Metal Objects (3/8'' X 3'' X 7'')
  • Common Size: the square U bolts measures about 3/8 inch in diameter, 3 inch in width and 7 inch in length, proper for 3 x 3 inch square, suitable size can meet your different fastening needs, please check the size before ordering
  • Sufficient Quantity: you will receive 4 pack of square U bolts in zinc, including 4 pieces of u bolts, 4 pieces of frame plates and 8 pieces of nuts; Enough quantity satisfy your uses and replacements
  • Hard Material: the square U bolt adopts carbon steel material, and with zinc plated, sturdy and reliable, with nice rust and corrosion resistance, each bolt can withstand the weight, still perform well in rainy and wet environments
  • Wide Applications: the U bolts are widely suitable for various fields, such as industry, manufacturing, maintenance, the automotive sector, clothing production, etc., ideal for fastening tubes, woods, trailer, and so on
  • Tips: It is recommended to use lubricant during installing the U bolts to prevent wear and tear; Use a manual wrench or socket ratchet when installing nuts; Do not use high speed power tools or impact tools to tighten the nuts
Rank No. #7
Dorman 660-120 U-Bolt 1/2 X 9 X 3-1/4Round, 2 Pack
  • Square and round styles available
  • Durable steel construction
  • Resistant to rust and corrosion
  • Available in many different sizes
  • Support available - every Dorman part is backed by Dorman's ASE Blue Seal Certified technical support team
Rank No. #8
New Trailer U Bolt Kit, Trailer Leaf Spring U Bolts, for 5200-7000lbs 3" Round Axle, 7” Long U-Bolts, 1/2” Diameter, 3” Wide U Bolts-20080
  • Application: This trailer U bolt kit is compatible with 5200-7000lbs round axle which axle beam diameter is 3 inch. This u bolt kit is 3 inch wide, 7 inch long
  • Package Include: 4 x 7" long trailer axle U bolts, U bolts diameter, 1/2", 8 x 1/2"-20 hex nuts, 2 x tie plates for 1-3/4" leaf springs
  • Material: This 3 inch trailer U bolt kit is made of durable steel, every part of this kit is designed as the original part, nuts and bolts are suitable with each other, better fit, no loose
  • Easy installation: Don’t need special tool to install, directly replaces, removes the broken U bolts and nuts, installs the new kit. Only spend your several minutes. Believe me! It will be the best choice for you when your trailer U bolts is broken
  • Service Support: If you have any questions about our 3 inch wide trailer axle u bolts, please do not hesitate to send us a message and we will actively assist you in finding a solution
Rank No. #9
National Hardware N222-372 2192BC Square U Bolt in Zinc plated,#657-3/8"x3"x7"
  • National Hardware's 3/8"x3"x7" Square U Bolt is designed for securing various products to rectangular wood and metal objects.
  • Manufactured from stainless steel for durability.
  • Nuts included for easy installation.
  • For interior and exterior applications.
  • If plates are required use National's N222-323 plates.
Rank No. #10
BST BSSP 4PCS Square U-Bolts 2.5" Wide Leaf Springs 8.75" Long Compatible with 1988-2019 Chevy Silverado GMC Sierra 1500 w/Hardware
  • Fitment: For 1988-1998 Chevrolet C1500; For 1988-1998 GMC C1500;For 1999-2019 GMC Sierra 1500; For 1999-2019 Chevrolet Silverado 1500
  • Feature:Zinc Coated Square U-Bolts with Hardware for 2.5" Wide Leaf Springs; Part Type:Suspension Lift Kit;Performance/Custom;Placement on Vehicle:Left, Right, Front, Rear
  • Package Included:(4pcs) Square Zinc Coated U-bolts;Included Hardware:Mounting Hardware as Shown, U-bolts;Part Number:Rear Lift Block Deavers
  • Measurement: Size:8.75" Long;9/16" Diameter;Length is measured from the bottom of the bend to the end of the threads
  • Please make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool before purchasing

Last update on 2025-03-17 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best long u bolts?

Do you get stressed out thinking about shopping for a great long u bolts? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching long u bolts, which is why we have assembled a comprehensive list of the greatest long u bolts available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for long u bolts that you consider buying. Your questions might include the following:

  • Is it worth buying an long u bolts?
  • What benefits are there with buying an long u bolts?
  • What factors deserve consideration when shopping for an effective long u bolts?
  • Why is it crucial to invest in any long u bolts, much less the best one?
  • Which long u bolts are good in the current market?
  • Where can you find information like this about long u bolts?

We’re convinced that you likely have far more questions than just these regarding long u bolts, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for long u bolts, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible long u bolts. Make sure that you are only using trustworthy and credible websites and sources.

We provide an long u bolts buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available long u bolts currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of long u bolts has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an long u bolts?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your long u bolts.
  5. Customer Ratings: Number ratings grade long u bolts objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their long u bolts.
  7. Product Quality: You don’t always get what you pay for with an long u bolts, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an long u bolts is should be an indication of how long it will work out for you.

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