Round U-Bolts 5/8" diameter - Grade 8

To Purchase Grade 8 Round U-Bolts

The chart below provides quick reference to the 5/8" diameter Round u-bolts we have in stock. Each kit contains:

Round U-Bolt Kit
  • 2 u-bolts
  • 4 washers
  • 4 nuts

Once you find the u-bolt that meets your requirements, click on the 'buy' link to add the u-bolt kit to your cart, and review pricing. On the cart page, specify the number of KITS you would like to purchase, and checkout.

How to Measure a Round U-Bolt

How to Measure U-bolts

  • Determine the type of bend (Round, Semi-Round, or Square)
  • Measure the diameter of the Rod ("A")
  • Measure the distance between the Legs ("B")
  • Measure the length of the leg ("C")

In the chart below, Part #8-1020K is 5/8" diameter x 3" wide x 7-5/8" long.

Grade 8 Common U-Bolts 5/8" diameter - Round
Part # Dimension Bend Rod Length Application Click for Price
8-1020K 5/8 x 3 x 7-5/8 Round 18   Buy
8-1022K 5/8 x 3 x 8-5/8 Round 20   Buy
8-1024K 5/8 x 3 x 9-5/8 Round 22   Buy
8-1026K 5/8 x 3 x 10-5/8 Round 24   Buy
8-1028K 5/8 x 3 x 11-5/8 Round 26   Buy
8-1029K 5/8 x 3 x 12-5/8 Round 28   Buy
 
8-1030K 5/8 x 3-1/2 x 7-1/2 Round 18   Buy
8-1032K 5/8 x 3-1/2 x 8-1/2 Round 20   Buy
8-1034K 5/8 x 3-1/2 x 9-1/2 Round 22   Buy
8-1036K 5/8 x 3-1/2 x 10-1/2 Round 24   Buy
8-1038K 5/8 x 3-1/2 x 11-1/2 Round 26   Buy
8-1039K 5/8 x 3-1/2 x 12-1/2 Round 28   Buy
 
8-1040K 5/8 x 3-5/8 x 7-1/2 Round 18   Buy
8-1042K 5/8 x 3-5/8 x 8-1/2 Round 20   Buy
8-1044K 5/8 x 3-5/8 x 9-1/2 Round 22   Buy
8-1046K 5/8 x 3-5/8 x 10-1/2 Round 24   Buy
8-1048K 5/8 x 3-5/8 x 11-1/2 Round 26   Buy
 
8-1050K 5/8 x 5 x 7-1/8 Round 18   Buy
8-1052K 5/8 x 5 x 8-1/8 Round 20   Buy

Need Custom Bent U-bolts?

Call 1-800-358-4751 for expert advice on U-Bolts. Or send us an email. We're open (Eastern Time Zone):
  • M-F: 7am - Midnight
  • Sat: 8am - 1pm
Secure online ordering is available 24 hours a day, 7 days a week.

Threaded Rod & U-bolt Links

About U-Bolts

U-Bolts on many suspensions provide the force necessary to create what is called the center clamp. This provides the permanent tie between not only the spring leaves, but between the spring and spring seat as well. The clamp performs the following functions:
  • Attach the spring firmly to the axle seat
  • Prevent leaf breakage through the center bolt section
  • Prevent center bolt breakage due to shear

U-Bolt Q&A

Q.  If I'm replacing a spring, can I re-use the old u-bolts?

A.  No, you should never re-use u-bolts. A properly installed U-Bolt stretches a little bit under torque. The results of this small amount of stretching and its effects on the U-Bolt threads and deep nut, lower a used U-Bolt's ability to sustain the required clamping torque.

Q.  Is torque important when I tighten u-bolts?

A.  You bet it is. The following are a list of common problems resulting from improperly torqued u-bolts:
  • looseness in seat area
  • excessive wear on chassis components
  • possible spring breakage
  • possible axle slippage and misalignment