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Overstock

We Have a Very Large Selection of U-Bolts in Stock in All Sizes for All Applications, Including Square U Bolts, Zinc Plated, Stainless Steel and Galvanized U-Bolts.

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The following discounts apply to all these products.

25th Annual 10% Off Storewide Memorial Day Sale!

Free Shipping on Orders of $150 or More!

5/8" x 9-1/2" x 5" U-bolt 10k Hayes

List Price: $12.61

Price$13.27

5/8" x 9-1/2" x 5" U-bolt 10k Hayes

Product ID 091148LN

This 5/8" x 9-1/2" x 5" U-bolt, 10k Hayes typically attaches your round, 10,000-lb Hayes axle to your leaf springs. Fits 10,000-lb, round Hayes trailer axles with 5" diameter.

List Price: $12.61

Price$13.27

5/8" x 4" x 8-1/8" Round U-bolt

List Price: $6.96

Price$7.33

5/8" x 4" x 8-1/8" Round U-bolt

Product ID 11-64LN

This 5/8" x 4" x 8-1/8" Round U-bolt is typically used for axles with a 4" diameter, these are usually 9,000lb axles, sold per each. 5/8"-11 rod diameter at the threads, measures 4" wide from inside to inside.

List Price: $6.96

Price$7.33

5/8" x 5" x 8-7/8" Round U-Bolt

List Price: $7.45

Price$7.84

5/8" x 5" x 8-7/8" Round U-Bolt

Product ID 11-77LN

This 5/8" x 5" x 8-7/8" Round U-Bolt is typically used for 10k axles with a 5" diameter, measures 5" wide from inside to inside. 5/8"-11 rod diameter at the threads. Priced and sold per each.

List Price: $7.45

Price$7.84

9/16" x 3-1/2" x 9" Round U-bolt

List Price: $9.29

Price$9.78

9/16" x 3-1/2" x 9" Round U-bolt

Product ID 175666LN

This 9/16" x 3-1/2" x 9" Round U-bolt is for 3-1/2" round tube axles with 10 leaf springs, usually 8,000lb axles, 9/16"-18 rod diameter. It measures 3-1/2" wide from inside to inside.

List Price: $9.29

Price$9.78

9/16" x 2-1/2" x 7-3/4" Round U-bolt

List Price: $5.92

Price$6.24

9/16" x 2-1/2" x 7-3/4" Round U-bolt

Product ID 175668LN

This 9/16" x 2-1/2" x 7-3/4" Round U-bolt for 2-1/2" round tube 7.5k solid bar axles measures 2-1/2" wide from inside to inside. It measures 9/16"-18 rod diameter at the threads.

List Price: $5.92

Price$6.24

1/2" x 2-3/8" Galvanized Round U-bolt

List Price: $4.68

Price$4.93

1/2" x 2-3/8" Galvanized Round U-bolt

Product ID 176400LN-G

This 1/2" x 2-3/8" Galvanized Round U-bolt is galvanized for corrosion resistance and has 13 threads per inch. It measures 2-3/8" wide from inside to inside. This 1/2" x 2-3/8" Galvanized Round U-bolt is priced and sold per each with quantity pricing available.

List Price: $4.68

Price$4.93

1/2" x 2-3/8" x 5-1/2" U-bolt Kit

List Price: $30.09

Price$31.67

1/2" x 2-3/8" x 5-1/2" U-bolt Kit

Product ID APUBR-1

This 1/2" x 2-3/8" x 5-1/2" U-bolt Kit has everything you need to mount your trailer's leaf springs to a 2-3/8" round axle. This kit contains u-bolts, u-bolt plates, and hex nuts, priced & sold per kit.

List Price: $30.09

Price$31.67

3/8" x 1-3/4" x 4-1/4" U-bolt Kit

List Price: $33.58

Price$35.35

3/8" x 1-3/4" x 4-1/4" U-bolt Kit

Product ID APUBR-10

This 3/8" x 1-3/4" x 4-1/4" U-bolt Kit has everything you need to mount your trailer's leaf springs to a 1-3/4" round axle. This typically fits a 2,000lb axle with a spring width of 1-3/4".

List Price: $33.58

Price$35.35

1/2" x 3" x 7" U-bolt Kit

List Price: $46.47

Price$48.91

1/2" x 3" x 7" U-bolt Kit

Product ID APUBR-8

This 1/2" x 3" x 7" U-bolt Kit has everything that you need to mount your trailer's leaf springs to a 3" round axle. This kit contains four u-bolts, two u-bolt plates, and eight hex nuts.

List Price: $46.47

Price$48.91

9/16" x 3" x 7-1/4" U-bolt Kit

List Price: $50.40

Price$53.05

9/16" x 3" x 7-1/4" U-bolt Kit

Product ID APUBR-9

This 9/16" x 3" x 7-1/4" U-bolt Kit has everything you need to mount your trailer's leaf springs to a 3" round axle. This typically fits a 5,200lb to 7,000lb axle with a spring width of 1-3/4" or 2".

List Price: $50.40

Price$53.05

Redline 1/2" x 2-1/8" x 5-1/4" Square Zinc U-bolts, Nuts & Washers

List Price: $16.47

Price$17.34

Redline 1/2" x 2-1/8" x 5-1/4" Square Zinc U-bolts, Nuts & Washers

Product ID HW04-010

This Redline 1/2" x 2-1/8" x 5-1/4" Square Zinc U-bolts, Nuts & Washers are Zinc plated to resist corrosion, it includes 2 U-bolts, 4 nuts and 4 washers. Priced and sold per each with quantity pricing available.

List Price: $16.47

Price$17.34

Redline 3/8" x 1-3/4" x 4" Square Zinc U-bolts, Nuts & Washers

List Price: $13.70

Price$14.43

Redline 3/8" x 1-3/4" x 4" Square Zinc U-bolts, Nuts & Washers

Product ID HW04-030

These Redline 3/8" x 1-3/4" x 4" Square Zinc U-bolts, Nuts and Washers have a variety of use. They can also be used on your boat trailer to secure bunks. Includes 2 U-bolts, 4 nuts, and 4 washers. Priced and sold per each, quantity pricing available.

List Price: $13.70

Price$14.43

Redline 3/8" x 2-1/4" x 4-1/4" Square Zinc U-Bolt, Nuts & Washers

List Price: $17.07

Price$17.96

Redline 3/8" x 2-1/4" x 4-1/4" Square Zinc U-Bolt, Nuts & Washers

Product ID HW04-035

These Redline 3/8" x 2-1/4" x 4-1/4" Square Zinc U-Bolt, Nuts and Washers are used for a variety of applications, such as your boat trailer to secure bunks. Includes 2 U-bolts, 4 nuts, and 4 washers. Quantity pricing applied in cart.

List Price: $17.07

Price$17.96

Redline 3/8" x 2-3/8" x 5-1/4" Square Zinc U-Bolts, Nuts & Washers

List Price: $15.48

Price$16.30

Redline 3/8" x 2-3/8" x 5-1/4" Square Zinc U-Bolts, Nuts & Washers

Product ID HW04-040

These Redline 3/8" x 2-3/8" x 5-1/4" Square Zinc U-Bolts, Nuts & Washers are used for a variety of applications, such as on your boat trailer to secure bunks. Includes 2 U-bolts, 4 nuts, and 4 washers. Quantity pricing applied in cart.

List Price: $15.48

Price$16.30

Redline 3/8" x 3-3/8" x 4-1/4" Square Zinc U-Bolts, Nuts & Washers

List Price: $14.97

Price$15.76

Redline 3/8" x 3-3/8" x 4-1/4" Square Zinc U-Bolts, Nuts & Washers

Product ID HW04-045

These Redline 3/8" x 3-3/8" x 4-1/4" Square Zinc U-Bolt, Nuts and Washers are used for a variety of applications, such as your boat trailer to secure bunks. Includes 2 U-bolts, 4 nuts, and 4 washers. Quantity pricing applied in cart.

List Price: $14.97

Price$15.76

Redline 1/2" x 3" x 7" Round U-bolts, Nuts

List Price: $21.80

Price$22.95

Redline 1/2" x 3" x 7" Round U-bolts, Nuts

Product ID SP01-060

This Redline 1/2" x 3" x 7" Round U-bolts with Nuts typically fits a 5,200-lb to 7000-lb axle with a 1-3/4" or 2" spring width. It has 20 threads per inch and is 3" wide from inside to inside.

List Price: $21.80

Price$22.95

Redline 9/16" x 3" x 7-1/4" Round U-bolts, Nuts

List Price: $26.65

Price$28.05

Redline 9/16" x 3" x 7-1/4" Round U-bolts, Nuts

Product ID SP01-080

These Redline 9/16" x 3" x 7-1/4" Round U-bolts and Nuts typically fit a 5,200-lb to 7000-lb axle with a 1-3/4" or 2" spring width. These have 18 threads per inch and measure 3" wide from inside to inside. Quantity pricing applied in cart.

List Price: $26.65

Price$28.05

Redline 9/16" x 3-1/2" x 8" Round U-bolts, Nuts

List Price: $14.43

Price$15.19

Redline 9/16" x 3-1/2" x 8" Round U-bolts, Nuts

Product ID SP01-100

This Redline 9/16" x 3-1/2" x 8" Round U-bolts and Nuts typically fits a 8,000-lb axle with a 2" spring width. It has 18 threads per inch and measures 3-1/2" wide from inside to inside. Priced and sold per each with quantity pricing available.

List Price: $14.43

Price$15.19

Redline 1/2" x 1-1/2" x 5" Square U-bolts, Nuts

List Price: $11.77

Price$12.39

Redline 1/2" x 1-1/2" x 5" Square U-bolts, Nuts

Product ID SP01-120

These Redline 1/2" x 1-1/2" x 5" Square U-bolts and Nuts are typically used for 3,500-lb axles, measure 1-1/2" wide from inside to inside. These have 20 threads per inch. Priced and sold per each with quantity pricing available.

List Price: $11.77

Price$12.39

Redline 9/16" x 1-3/4" x 5" Square U-bolts, Nuts

List Price: $13.02

Price$13.70

Redline 9/16" x 1-3/4" x 5" Square U-bolts, Nuts

Product ID SP01-140

These Redline 9/16" x 1-3/4" x 5" Square U-bolts and Nuts measure 1-3/4" wide from inside to inside with 18 threads per inch. Includes 2 U-Bolts and 4 Nuts. Priced and sold per each with quantity pricing available.

List Price: $13.02

Price$13.70

Redline 9/16" x 2" x 5-3/4" Square U-bolts, Nuts

List Price: $20.09

Price$21.15

Redline 9/16" x 2" x 5-3/4" Square U-bolts, Nuts

Product ID SP01-160

This Redline 9/16" x 2" x 5-3/4" Square U-bolts with Nuts measure 2" wide from inside to inside and includes 2 u-bolts, 4 nuts. They have 18 threads per inch. Priced and sold per each with quantity pricing available.

List Price: $20.09

Price$21.15

1/2" x 2-1/16" x 4-5/16" Galvanized Square U-bolt

List Price: $3.30

Price$3.19

1/2" x 2-1/16" x 4-5/16" Galvanized Square U-bolt

Product ID UBGC12X206X431

This 1/2" x 2-1/16" x 4-5/16" Galvanized Square U-bolt is galvanized to resist corrosion and measure 2-1/16" from inside to inside. It has 13 threads per inch, and is priced & sold per each.

List Price: $3.30

Price$3.19

1/2" x 2-1/16" x 4-13/16" Galvanized Square U-bolt

List Price: $3.20

Price$3.37

1/2" x 2-1/16" x 4-13/16" Galvanized Square U-bolt

Product ID UBGC12X206X481

This 1/2" x 2-1/16" x 4-13/16" Galvanized Square U-bolt is galvanized to resist corrosion and measures 2-1/6 from inside to inside. It has 13 threads per inch, and is priced & sold per each.

List Price: $3.20

Price$3.37

1/2" x 2-1/16" x 5-5/16" Galvanized Square U-bolt

List Price: $3.64

Price$3.84

1/2" x 2-1/16" x 5-5/16" Galvanized Square U-bolt

Product ID UBGC12X206X531

This 1/2" x 2-1/16" x 5-5/16" Galvanized Square U-bolt, threads are 2" long, is 2-1/6 from inside to inside and has 13 threads per inch. It is galvanized to resist corrosion. Priced and sold per each u-bolt with quantity pricing applied in cart.

List Price: $3.64

Price$3.84

1/2" x 2-1/6" x 5-1/2" Galvanized Square U-bolt

List Price: $3.49

Price$3.67

1/2" x 2-1/6" x 5-1/2" Galvanized Square U-bolt

Product ID UBGC12X206X550

This 1/2" x 2-1/6" x 5-1/2" Galvanized Square U-bolt is galvanized to resist corrosion and measures 2-1/16" from inside to inside. It has 13 threads per inch, and is sold per each.

List Price: $3.49

Price$3.67

1/2" x 2-1/16" x 5-13/16" Galvanized Square U-bolt

List Price: $3.63

Price$3.82

1/2" x 2-1/16" x 5-13/16" Galvanized Square U-bolt

Product ID UBGC12X206X581

This 1/2" x 2-1/16" x 5-13/16" Galvanized Square U-bolt measures 2-1/16" from inside to inside and has 13 threads per inch. It is galvanized to resist corrosion, and is sold per each.

List Price: $3.63

Price$3.82

1/2" x 2-1/16" x 6-5/16" Galvanized Square U-bolt

List Price: $3.71

Price$3.91

1/2" x 2-1/16" x 6-5/16" Galvanized Square U-bolt

Product ID UBGC12X206X631

This 1/2" x 2-1/16" x 6-5/16" Galvanized Square U-bolt is galvanized to resist corrosion and measures 2-1/16" from inside to inside. The threads are 2" long with 13 threads per inch.

List Price: $3.71

Price$3.91

1/2" x 3-1/16" x 2-5/16" Galvanized Square U-bolt

List Price: $2.30

Price$2.43

1/2" x 3-1/16" x 2-5/16" Galvanized Square U-bolt

Product ID UBGC12X306X231

This 1/2" x 3-1/16" x 2-5/16" Galvanized Square U-bolt has 13 threads per inch, measures 3-1/16" from inside to inside and is galvanized to resist corrosion. The threads are 1-1/2" long.

List Price: $2.30

Price$2.43

1/2" x 3-1/16" x 3-1/4" Galvanized Square U-bolt

List Price: $2.70

Price$2.85

1/2" x 3-1/16" x 3-1/4" Galvanized Square U-bolt

Product ID UBGC12X306X325

This 1/2" x 3-1/16" x 3-1/4" Galvanized Square U-bolt is galvanized to resist corrosion and measures 3-1/16" from inside to inside. The threads are 2" long and there are 13 threads per inch. Priced and sold per each with quantity pricing applied in cart.

List Price: $2.70

Price$2.85

1/2" x 3-3/16" x 3-5/16" Galvanized Square U-bolt

List Price: $2.65

Price$2.79

1/2" x 3-3/16" x 3-5/16" Galvanized Square U-bolt

Product ID UBGC12X306X331

This 1/2" x 3-3/16" x 3-5/16" Galvanized Square U-bolt has 13 threads per inch, measures 3-1/16" from inside to inside, threads are 2" long, and is galvanized to resist corrosion.

List Price: $2.65

Price$2.79

1/2" x 3-3/16" x 3-13/16" Galvanized Square U-bolt

List Price: $2.86

Price$3.01

1/2" x 3-3/16" x 3-13/16" Galvanized Square U-bolt

Product ID UBGC12X306X381

This 1/2" x 3-3/16" x 3-13/16" Galvanized Square U-bolt is galvanized to resist corrosion, the threads are 1-1/2" long. It has 13 threads per inch and it is 3-1/16" from inside to inside.

List Price: $2.86

Price$3.01

1/2" x 3-1/16" x 4-5/16" Galvanized Square U-bolt

List Price: $3.30

Price$3.48

1/2" x 3-1/16" x 4-5/16" Galvanized Square U-bolt

Product ID UBGC12X306X431

This 1/2" x 3-1/16" x 4-5/16" Galvanized Square U-bolt is galvanized to resist corrosion and is sold per each u-bolt. The threads are 2" long with 13 threads per inch. Priced and sold per each u-bolt with quantity pricing applied in cart.

List Price: $3.30

Price$3.48

1/2" x 3-1/16" x 5-5/16" Galvanized Square U-bolt

List Price: $3.56

Price$3.75

1/2" x 3-1/16" x 5-5/16" Galvanized Square U-bolt

Product ID UBGC12X306X531

This 1/2" x 3-1/16" x 5-5/16" Galvanized Square U-bolt is galvanized to resist corrosion and has 13 threads per inch.

List Price: $3.56

Price$3.75

1/2" x 3-1/16" x 7-5/16" Galvanized Square U-Bolt

List Price: $4.46

Price$4.69

1/2" x 3-1/16" x 7-5/16" Galvanized Square U-Bolt

Product ID UBGC12X306X731

This 1/2" x 3-1/16" x 7-5/16" Galvanized Square U-Bolt is galvanized to resist corrosion and measures 3-1/16" from inside to inside. The threads are 2" long and has 13 threads per inch.

List Price: $4.46

Price$4.69

1/2" x 2-1/8" x 5-1/4" Zinc Square U-bolt

List Price: $3.34

Price$3.52

1/2" x 2-1/8" x 5-1/4" Zinc Square U-bolt

Product ID UBZC12X212X525

This 1/2" x 2-1/8" x 5-1/4" Zinc Square U-bolt is zinc plated to resist corrosion, has 13 threads per inch and is sold per each. This 1/2" x 2-1/8" x 5-1/4" Zinc Square U-bolt is sold per each.

List Price: $3.34

Price$3.52

1/2" x 2-1/8" x 6-1/2" Zinc Square U-bolt

List Price: $3.54

Price$3.73

1/2" x 2-1/8" x 6-1/2" Zinc Square U-bolt

Product ID UBZC12X212X650

This 1/2" x 2-1/8" x 6-1/2" Zinc Square U-bolt is zinc plated to resist corrosion and measures 2-1/8" from inside to inside. It has 13 threads per inch, and is sold per each.

List Price: $3.54

Price$3.73

1/2" x 3-1/8" x 5-1/4" Zinc Square U-bolt

List Price: $3.39

Price$3.57

1/2" x 3-1/8" x 5-1/4" Zinc Square U-bolt

Product ID UBZC12X312X525

This 1/2" x 3-1/8" x 5-1/4" Zinc Square U-bolt is zinc plated to resist corrosion and measures 3-1/8" from inside to inside. This has 13 threads per inch. Priced and sold per each.

List Price: $3.39

Price$3.57

1/2" x 3-1/8" x 6-1/2" Zinc Square U-bolt

List Price: $4.30

Price$4.53

1/2" x 3-1/8" x 6-1/2" Zinc Square U-bolt

Product ID UBZC12X312X650

This 1/2" x 3-1/8" x 6-1/2" Zinc Square U-bolt measures 3-1/8" from inside to inside and has 13 threads per inch. It is zinc plated to resist corrosion. This 1/2" x 3-1/8" x 6-1/2" Zinc Square U-bolt is priced and sold per each with quantity pricing applied in cart.

List Price: $4.30

Price$4.53

3/8" x 1-3/4" x 4" Zinc Square U-bolt

List Price: $2.39

Price$2.52

3/8" x 1-3/4" x 4" Zinc Square U-bolt

Product ID UBZC38X175X400

This 3/8" x 1-3/4" x 4" Zinc Square U-bolt is zinc plated to resist corrosion and measures 1-3/4" from inside to inside. It has 16 threads per inch, and is priced and sold per each.

List Price: $2.39

Price$2.52

3/8" x 2-1/4" x 4-1/4" Zinc Square U-bolt

List Price: $2.39

Price$2.52

3/8" x 2-1/4" x 4-1/4" Zinc Square U-bolt

Product ID UBZC38X225X425

This 3/8" x 2-1/4" x 4-1/4" Zinc Square U-bolt is zinc plated to resist corrosion and measures 2-1/4" from inside to inside. It has 16 threads per inch. Priced and sold per each.

List Price: $2.39

Price$2.52

3/8" x 2-3/8" x 5-1/4" Zinc Square U-bolt

List Price: $2.46

Price$2.59

3/8" x 2-3/8" x 5-1/4" Zinc Square U-bolt

Product ID UBZC38X238X525

This 3/8" x 2-3/8" x 5-1/4" Zinc Square U-bolt is zinc plated to resist corrosion, has 16 threads per inch, measures 2-3/8" from inside to inside. Priced and sold per each u-bolt.

List Price: $2.46

Price$2.59

3/8" x 3-3/8" x 4-1/4" Zinc Square U-bolt

List Price: $2.42

Price$2.55

3/8" x 3-3/8" x 4-1/4" Zinc Square U-bolt

Product ID UBZC38X338X425

This 3/8" x 3-3/8" x 4-1/4" Zinc Square U-bolt is zinc plated to resist corrosion, has 16 threads per inch and is sold per each. This u-bolt measures 3-3/8" from inside to inside.

List Price: $2.42

Price$2.55

7/16" x 2-1/8" x 4" Zinc Square U-bolt

List Price: $2.65

Price$2.79

7/16" x 2-1/8" x 4" Zinc Square U-bolt

Product ID UBZC716X212X400

This 7/16" x 2-1/8" x 4" Zinc Square U-bolt measures 2-1/8" from inside to inside and is zinc plated to resist corrosion, 14 threads per inch. Measures 2-1/8" from inside to inside.

List Price: $2.65

Price$2.79

7/16" x 3-1/8" x 3" Zinc Square U-bolt

List Price: $2.49

Price$2.62

7/16" x 3-1/8" x 3" Zinc Square U-bolt

Product ID UBZC716X312X300

This 7/16" x 3-1/8" x 3" Zinc Square U-bolt is zinc plated to resist corrosion and measures 3-1/8" from inside to inside. It has 14 threads per inch, and is priced and sold per each.

List Price: $2.49

Price$2.62

7/16" x 3-1/8" x 4" Zinc Square U-bolt

List Price: $2.63

Price$2.77

7/16" x 3-1/8" x 4" Zinc Square U-bolt

Product ID UBZC716X312X400

This 7/16" x 3-1/8" x 4" Zinc Square U-bolt measures 3-1/8" from inside to inside and has 14 threads per inch, zinc plated to resist corrosion. This 7/16" x 3-1/8" x 4" Zinc Square U-bolt is priced and sold per each with quantity pricing applied in cart.

List Price: $2.63

Price$2.77

7/16" x 4-1/8" x 3" Zinc Square U-bolt

List Price: $2.46

Price$2.59

7/16" x 4-1/8" x 3" Zinc Square U-bolt

Product ID UBZC716X412X300

This 7/16" x 4-1/8" x 3" Zinc Square U-bolt is zinc plated to resist corrosion and measures 4-1/8" from inside to inside. It has 14 threads per inch and is priced and sold per each.

List Price: $2.46

Price$2.59

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