Skip to content
Free shipping on orders $250 and up!
Free shipping on orders $250 and up!

U-Bolts & J-Bolts

  • 5/16"-18 x 2" x 7" Zinc Plated Steel Square U-Bolt
    $23.59 - $23.59
    $23.59
    $23.59 - $23.59
    $23.59

    5/16"-18 x 2" x 7" Zinc Plated Steel Square U-Bolt (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 2"Length: 7"Material: SteelFinish: ZincShape: SquareType: U-BoltBox of 10.

    $23.59 - $23.59
    $23.59
    $23.59 - $23.59
    $23.59
  • 5/16"-18 x 2" x 3" Zinc Plated Steel Square U-Bolt
    $20.02 - $20.02
    $20.02
    $20.02 - $20.02
    $20.02

    5/16"-18 x 2" x 3" Zinc Plated Steel Square U-Bolt (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 2"Length: 3"Material: SteelFinish: ZincShape: SquareType: U-BoltBox of 10.

    $20.02 - $20.02
    $20.02
    $20.02 - $20.02
    $20.02
  • 5/16"-18 x 1-3/8" x 3-3/4" Zinc Plated Steel Round U-Bolt
    $21.13 - $21.13
    $21.13
    $21.13 - $21.13
    $21.13

    5/16"-18 x 1-3/8" x 3-3/4" Zinc Plated Steel Round U-Bolt (10 pcs.)

    Monster Fastener
    Only 3 left!

    Thread Diameter: 5/16"Inside Diameter: 1-3/8"Length: 3-3/4"Material: SteelFinish: ZincShape: RoundType: U-Bolt Box of 10.

    $21.13 - $21.13
    $21.13
    $21.13 - $21.13
    $21.13
  • 5/16"-18 x 2" x 3-1/4" Zinc Plated Steel Round U-Bolt
    $19.69 - $19.69
    $19.69
    $19.69 - $19.69
    $19.69

    5/16"-18 x 2" x 3-1/4" Zinc Plated Steel Round U-Bolt (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 2"Length: 3-1/4"Material: SteelFinish: ZincShape: RoundType: U-BoltBox of 10.

    $19.69 - $19.69
    $19.69
    $19.69 - $19.69
    $19.69
  • 5/16"-18 x 1-3/4" x 4-1/4" Zinc Plated Steel Round U-Bolt
    $21.34 - $21.34
    $21.34
    $21.34 - $21.34
    $21.34

    5/16"-18 x 1-3/4" x 4-1/4" Zinc Plated Steel Round U-Bolt (10 pcs.)

    Monster Fastener
    Only 9 left!

    Diameter: 5/16"Diameter 2: 1-3/4"Length: 4-1/4"Material: SteelFinish: ZincShape: RoundType: U-BoltBox of 10.

    $21.34 - $21.34
    $21.34
    $21.34 - $21.34
    $21.34
  • 5/16" x 5/8" 6" Zinc Plated Steel Coarse Thread J-Bolts
    $26.52 - $26.52
    $26.52
    $26.52 - $26.52
    $26.52

    5/16" x 5/8" 6" Zinc Plated Steel Coarse Thread J-Bolts (20 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Length: 6"Material: SteelFinish: ZincThread Type: CoarseType: J BoltBox of 20.

    $26.52 - $26.52
    $26.52
    $26.52 - $26.52
    $26.52
  • 5/16"-18 x 5" Zinc Plated Steel Coase Thread J-Bolt w/ Nut
    $14.67 - $14.67
    $14.67
    $14.67 - $14.67
    $14.67

    5/16"-18 x 5" Zinc Plated Steel Coase Thread J-Bolt w/ Nut (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Length: 5"Material: SteelFinish: ZincThread Size: 18 (Coarse)Type: J BoltBox of 10.

    $14.67 - $14.67
    $14.67
    $14.67 - $14.67
    $14.67
  • 5/16"-18 x 2-1/2" x 5-3/16" Zinc Plated Steel Round U-Bolt
    $23.01 - $23.01
    $23.01
    $23.01 - $23.01
    $23.01

    5/16"-18 x 2-1/2" x 5-3/16" Zinc Plated Steel Round U-Bolt (10 pcs.)

    Monster Fastener
    Only 6 left!

    Diameter: 5/16"Diameter 2: 2-1/2"Length: 5-3/16"Material: SteelFinish: ZincShape: RoundType: U-BoltBox of 10.

    $23.01 - $23.01
    $23.01
    $23.01 - $23.01
    $23.01
  • 5/16"-18 x 2-1/2" x 3-1/2" Zinc Plated Steel Round U-Bolt
    $21.34 - $21.34
    $21.34
    $21.34 - $21.34
    $21.34

    5/16"-18 x 2-1/2" x 3-1/2" Zinc Plated Steel Round U-Bolt (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 2-1/2"Length: 3-1/2"Material: SteelFinish: ZincShape: RoundType: U-BoltBox of 10.

    $21.34 - $21.34
    $21.34
    $21.34 - $21.34
    $21.34
  • 5/16" x 5/8" x 4" Zinc Plated Steel Coarse Thread J-Bolts
    $23.45 - $23.45
    $23.45
    $23.45 - $23.45
    $23.45

    5/16" x 5/8" x 4" Zinc Plated Steel Coarse Thread J-Bolts (20 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Length: 4"Material: SteelFinish: ZincThread Type: CoarseType: J BoltBox of 20.

    $23.45 - $23.45
    $23.45
    $23.45 - $23.45
    $23.45
  • 5/16"-18 x 1-3/8" x 2-1/2" Zinc Plated Steel Round U-Bolt
    $20.30 - $20.30
    $20.30
    $20.30 - $20.30
    $20.30

    5/16"-18 x 1-3/8" x 2-1/2" Zinc Plated Steel Round U-Bolt (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 1-3/8"Length: 2-1/2"Material: SteelFinish: ZincShape: RoundType: U-BoltBox of 10.

    $20.30 - $20.30
    $20.30
    $20.30 - $20.30
    $20.30
  • 5/16"-18 x 4" Zinc Plated Steel Coarse Thread J Bolts
    $12.46 - $12.46
    $12.46
    $12.46 - $12.46
    $12.46

    5/16"-18 x 4" Zinc Plated Steel Coarse Thread J Bolts (5 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Length: 4"Material: SteelFinish: ZincThread Size: 18 (Coarse)Type: J BoltBox of 5.

    $12.46 - $12.46
    $12.46
    $12.46 - $12.46
    $12.46
  • 5/16"-18 x 3" Zinc Plated Steel Coarse Thread J Bolts
    $12.74 - $12.74
    $12.74
    $12.74 - $12.74
    $12.74

    5/16"-18 x 3" Zinc Plated Steel Coarse Thread J Bolts (6 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Length: 3"Material: SteelFinish: ZincThread Size: 18 (Coarse)Type: J BoltBox of 6.

    $12.74 - $12.74
    $12.74
    $12.74 - $12.74
    $12.74
  • 5/16"-18 x 3" Zinc Plated Steel Coase Thread J-Bolt w/ Nut
    $12.98 - $12.98
    $12.98
    $12.98 - $12.98
    $12.98

    5/16"-18 x 3" Zinc Plated Steel Coase Thread J-Bolt w/ Nut (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Length: 3"Material: SteelFinish: ZincThread Size: 18 (Coarse)Type: J BoltBox of 10.

    $12.98 - $12.98
    $12.98
    $12.98 - $12.98
    $12.98
  • 5/16"-18 x 2" x 4-11/16" 18-8 Stainless Steel Round U-Bolt
    $81.27 - $81.27
    $81.27
    $81.27 - $81.27
    $81.27

    5/16"-18 x 2" x 4-11/16" 18-8 Stainless Steel Round U-Bolt (10 pcs.)

    Monster Fastener
    Only 8 left!

    Diameter: 5/16"Diameter 2: 2"Length: 4-11/16"Material: Stainless SteelShape: RoundHardness: 18-8Type: U-BoltBox of 10.

    $81.27 - $81.27
    $81.27
    $81.27 - $81.27
    $81.27
  • 5/16"-18 x 2-1/2" x 3-1/2" 18-8 Stainless Steel Round U-Bolt
    $70.83 - $70.83
    $70.83
    $70.83 - $70.83
    $70.83

    5/16"-18 x 2-1/2" x 3-1/2" 18-8 Stainless Steel Round U-Bolt (10 pcs.)

    Monster Fastener
    Only 10 left!

    Diameter: 5/16"Diameter 2: 2-1/2"Length: 3-1/2"Material: Stainless SteelShape: RoundHardness: 18-8Type: U-BoltBox of 10.

    $70.83 - $70.83
    $70.83
    $70.83 - $70.83
    $70.83
  • 5/16"-18 x 1-3/4" 18-8 Stainless Steel Round U-Bolt
    $62.58 - $62.58
    $62.58
    $62.58 - $62.58
    $62.58

    5/16"-18 x 1-3/4" 18-8 Stainless Steel Round U-Bolt (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 1-3/4"Length: 3"Material: Stainless SteelShape: RoundHardness: 18-8Type: U-BoltBox of 10.

    $62.58 - $62.58
    $62.58
    $62.58 - $62.58
    $62.58
  • 5/16"-18 x 1-3/8" x 2-1/2" 18-8 Stainless Steel Round U-Bolt
    $57.48 - $57.48
    $57.48
    $57.48 - $57.48
    $57.48

    5/16"-18 x 1-3/8" x 2-1/2" 18-8 Stainless Steel Round U-Bolt (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 1-3/8"Length: 2-1/2"Material: Stainless SteelShape: RoundHardness: 18-8Type: U-BoltBox of 10.

    $57.48 - $57.48
    $57.48
    $57.48 - $57.48
    $57.48
  • 5/16"-18 x 2" x 4-11/16"Zinc Plated Steel Round U-Bolt
    $23.01 - $23.01
    $23.01
    $23.01 - $23.01
    $23.01

    5/16"-18 x 2" x 4-11/16"Zinc Plated Steel Round U-Bolt (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 2"Length: 4-11/16"Material: SteelFinish: ZincShape: RoundType: U-BoltBox of 10.

    $23.01 - $23.01
    $23.01
    $23.01 - $23.01
    $23.01
  • 5/16"x 5/8" x 5" Zinc Plated Steel Coarse Thread J-Bolts
    $24.26 - $24.26
    $24.26
    $24.26 - $24.26
    $24.26

    5/16"x 5/8" x 5" Zinc Plated Steel Coarse Thread J-Bolts (20 pcs.)

    Monster Fastener
    Only 5 left!

    Diameter: 5/16"Length: 5"Material: SteelFinish: ZincThread Type: CoarseType: J BoltBox of 20.

    $24.26 - $24.26
    $24.26
    $24.26 - $24.26
    $24.26
  • 5/16" x 5/8" x 3" Zinc Plated Steel Coarse Thread J-Bolts
    $22.01 - $22.01
    $22.01
    $22.01 - $22.01
    $22.01

    5/16" x 5/8" x 3" Zinc Plated Steel Coarse Thread J-Bolts (20 pcs.)

    Monster Fastener
    Only 2 left!

    Diameter: 5/16"Length: 3"Material: SteelFinish: ZincThread Type: CoarseType: J BoltBox of 20.

    $22.01 - $22.01
    $22.01
    $22.01 - $22.01
    $22.01