Do I Need to Add Washers to the U-Bolt Kit for Mounting 5,200-lb to 7,000-lb, Round Trailer Axles?
Published 08/28/2025
Question:
My leaf springs are under my axle, so the bracket is underneath, and the nuts are on the bottom. Do I need to use a lock washer, or will the provided nuts hold up to vibration?
asked by: Tobey
0
Leaf Springs Under Axle
(click to enlarge)
(click to enlarge)
Expert Reply:
Hello Tobey,
The U-Bolt Kit for Mounting 5,200-lb to 7,000-lb, Round Trailer Axles - 7" Long U-Bolts # APUBR-8 comes with all the hardware that you need, the (8) 1/2"-20 Hex nuts (12N) will be able to hold up to the vibrations. I do see in some reviews that some people did add washers, but it is not necessary.
What kind of trailer are you working on?
expert reply by:
Kate F
0
Product Page this Question was Asked From
U-Bolt Kit for Mounting 5,200-lb to 7,000-lb, Round Trailer Axles - 7" Long U-Bolts
- Trailer Suspension Parts
- U-Bolt Kits
- Camper
- Car Hauler
- Utility Trailer
- 5200 lbs - 7000 lbs
- Round Axle - 3 Inch
- 1/2 Inch Diameter
- 7 Inch Long
- Dexter
more information >
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Tobey
8/28/2025
Sure-Trac Utility trailer