Order U-bolt kits online. Each U-bolt kit has two U-bolts with nuts and washers. We also make custom U-bolts (small and large orders).
To order online kits, click the type of U-bolt that you need. Find the U-bolt kit based on dimensions. Use our U-bolt Inquire Form to find out pricing of U-bolt sizes not listed in our standard kits. We also provide discount on large order U-bolt orders (bulk pricing) --> enter you information in the U-bolt form to get pricing.
Complete Leaf Spring U bolt kits that include two U bolts with deep nuts and hard washers. Click U-bolt type that you require to go to further detail. If you don't see a U bolt that meets your specifications in our catalog, please use our inquire form. We can also make custom suspension U bolts based on the dimensions that you need. These custom axle u-bolts can be shipped anywhere by UPS.
U-bolts 9/16" diameter and less are made from 1541 Grade 5 Material. Ubolts 5/8" diameter and greater are made from Grade 8 material. U-bolts have a sufficient amount of rolled threads on each leg.
We can also make most suspension u-bolts to your specifications and ship them out the same day. Please let us know the dimensions (as shown below), the type of bend, and the application. We can give you a price including shipping.
Custom or Quantity U-Bolt Price Request Form
LEAF SPRINGS FOR ALL MODEL TRUCKS/ HEAVY DUTY LEAF SPRINGS
A U-bolt serves in four critical related roles:
How to measure a Leaf Spring U-bolts
Regardless of the bend type, all Leaf Spring U-bolts are measured in the same manner as shown here. The U-bolt size is given as
Diameter (A) x Distance Between Legs (B) x Leg Length (C).
Additionally the bend type must also be specified; either round, semi-round or square.
Do not reuse auto or truck Leaf Spring U bolts
Rod/U-bolt Diameter Determination
U-bolt Torque Pattern
U bolts must be tightened and torqued using a cross pattern sequence
-Tighten #1 then #4 to partial torque then partial torque #2 and #3
-Using the same sequence, fully torque U-bolt Nuts
U bolts that have been torqued to a set preload are recommended to be re-torqued after a short time to take-up the stretch in the set of the material.