Square U-Bolts 3/4" diameter - Grade 8

To Purchase Grade 8 Square U-Bolts

The chart below provides quick reference to the 3/4" diameter square u-bolts we have in stock. Each kit contains:

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 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 #8-1262K is 3/4" diameter x 3" wide x 10-1/8" long.

Grade 8 Common Square U-Bolts - 3/4" diameter
			Corner	Rod		Click for
Part #	Dimension	Bend	Radius	Length	Application	Price
8-1262K	3/4 x 3 x 10-1/8	Square	0.375	24		Buy
8-1263K	3/4 x 3 x 11-1/8	Square	0.375	26		Buy
8-1264K	3/4 x 3 x 12-1/8	Square	0.375	28		Buy
8-1265K	3/4 x 3 x 13-1/8	Square	0.375	30		Buy
8-1266K	3/4 x 3 x 14-1/8	Square	0.375	32		Buy
8-1267K	3/4 x 3 x 15-1/8	Square	0.375	34		Buy
8-1268K	3/4 x 3 x 16-1/8	Square	0.375	36		Buy
8-1269K	3/4 x 3 x 17-1/8	Square	0.375	38		Buy

8-1270K	3/4 x 3 x 12-1/4	Square	0.750	28	Navistar	Buy

8-1272K	3/4 x 3-1/2 x 10	Square	0.500	24		Buy
8-1273K	3/4 x 3-1/2 x 11	Square	0.500	26		Buy
8-1274k	3/4 x 3-1/2 x 12	Square	0.500	28		Buy
8-1275K	3/4 x 3-1/2 x 13	Square	0.500	30		Buy
8-1276K	3/4 x 3-1/2 x 14	Square	0.500	32		Buy
8-1277K	3/4 x 3-1/2 x 15	Square	0.500	34		Buy
8-1278K	3/4 x 3-1/2 x 16	Square	0.500	36		Buy
8-1279K	3/4 x 3-1/2 x 17	Square	0.500	38		Buy
8-1280K	3/4 x 3-1/2 x 18	Square	0.500	40		Buy

8-1282K	3/4 x 4 x 9-3/4	Square	0.500	24		Buy
8-1283K	3/4 x 4 x 10-3/4	Square	0.500	26		Buy
8-1284K	3/4 x 4 x 11-3/4	Square	0.500	28		Buy
8-1285K	3/4 x 4 x 12-3/4	Square	0.500	30		Buy
8-1286K	3/4 x 4 x 13-3/4	Square	0.500	32		Buy
8-1287K	3/4 x 4 x 14-3/4	Square	0.500	34		Buy
8-1288K	3/4 x 4 x 15-3/4	Square	0.500	36		Buy
8-1289K	3/4 x 4 x 16-3/4	Square	0.500	38		Buy
8-1290K	3/4 x 4 x 17-3/4	Square	0.500	40		Buy

8-1292K	3/4 x 5 x 8-3/8	Square	0.875	22	Hutch	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