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

Square Head Bolts

  • Original price $7.67 - Original price $7.67
    Original price
    $7.67
    $7.67 - $7.67
    Current price $7.67

    5/16"-18 x 3" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts

    10+ in stock

    Diameter: 5/16"Length: 3"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Square He...

    View full details
    Original price $7.67 - Original price $7.67
    Original price
    $7.67
    $7.67 - $7.67
    Current price $7.67
  • Original price $6.91 - Original price $6.91
    Original price
    $6.91
    $6.91 - $6.91
    Current price $6.91

    5/16"-18 x 2-1/2" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts

    10+ in stock

    Diameter: 5/16"Length: 2-1/2"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Squar...

    View full details
    Original price $6.91 - Original price $6.91
    Original price
    $6.91
    $6.91 - $6.91
    Current price $6.91
  • Original price $6.90 - Original price $6.90
    Original price
    $6.90
    $6.90 - $6.90
    Current price $6.90

    5/16"-18 x 1-3/4" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts

    10+ in stock

    Diameter: 5/16"Length: 1-3/4"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Squar...

    View full details
    Original price $6.90 - Original price $6.90
    Original price
    $6.90
    $6.90 - $6.90
    Current price $6.90
  • Original price $5.98 - Original price $5.98
    Original price
    $5.98
    $5.98 - $5.98
    Current price $5.98

    5/16"-18 x 1-1/2" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts

    10+ in stock

    Diameter: 5/16"Length: 1-1/2"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Squar...

    View full details
    Original price $5.98 - Original price $5.98
    Original price
    $5.98
    $5.98 - $5.98
    Current price $5.98
  • Original price $5.35 - Original price $5.35
    Original price
    $5.35
    $5.35 - $5.35
    Current price $5.35

    5/16"-18 x 1-3/8" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts

    10+ in stock

    Diameter: 5/16"Length: 1-3/8"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Squar...

    View full details
    Original price $5.35 - Original price $5.35
    Original price
    $5.35
    $5.35 - $5.35
    Current price $5.35
  • Original price $5.17 - Original price $5.17
    Original price
    $5.17
    $5.17 - $5.17
    Current price $5.17

    5/16"-18 x 1-1/4" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts

    10+ in stock

    Diameter: 5/16"Length: 1-1/4"Material: SteelFinish: ZincHead Style: Square (1/2" Wrench)Thread Size: 18 (Coarse)Hardness: Grade 2 / A307Type: Squar...

    View full details
    Original price $5.17 - Original price $5.17
    Original price
    $5.17
    $5.17 - $5.17
    Current price $5.17
  • Original price $5.93 - Original price $5.93
    Original price
    $5.93
    $5.93 - $5.93
    Current price $5.93

    1/4"-20 x 3-1/2" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts

    10+ in stock

    Diameter: 1/4"Length: 3-1/2"Material: SteelFinish: ZincHead Style: Square (3/8" Wrench)Thread Size: 20 (Coarse)Hardness: Grade 2 / A307Type: Square...

    View full details
    Original price $5.93 - Original price $5.93
    Original price
    $5.93
    $5.93 - $5.93
    Current price $5.93
  • Original price $6.38 - Original price $6.38
    Original price
    $6.38
    $6.38 - $6.38
    Current price $6.38

    1/4"-20 x 2" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts

    10+ in stock

    Diameter: 1/4"Length: 2"Material: SteelFinish: ZincHead Style: Square (3/8" Wrench)Thread Size: 20 (Coarse)Hardness: Grade 2 / A307Type: Square Hea...

    View full details
    Original price $6.38 - Original price $6.38
    Original price
    $6.38
    $6.38 - $6.38
    Current price $6.38
  • Original price $6.55 - Original price $6.55
    Original price
    $6.55
    $6.55 - $6.55
    Current price $6.55

    1/4"-20 x 1-1/2" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts

    10+ in stock

    Diameter: 1/4"Length: 1-1/2"Material: SteelFinish: ZincHead Style: Square (3/8" Wrench)Thread Size: 20 (Coarse)Hardness: Grade 2 / A307Type: Square...

    View full details
    Original price $6.55 - Original price $6.55
    Original price
    $6.55
    $6.55 - $6.55
    Current price $6.55
  • Original price $5.08 - Original price $5.08
    Original price
    $5.08
    $5.08 - $5.08
    Current price $5.08

    1/4"-20 x 1-1/4" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts

    10+ in stock

    Diameter: 1/4"Length: 1-1/4"Material: SteelFinish: ZincHead Style: Square (3/8" Wrench)Thread Size: 20 (Coarse)Hardness: Grade 2 / A307Type: Square...

    View full details
    Original price $5.08 - Original price $5.08
    Original price
    $5.08
    $5.08 - $5.08
    Current price $5.08
  • Original price $5.20 - Original price $5.20
    Original price
    $5.20
    $5.20 - $5.20
    Current price $5.20

    1/4"-20 x 1" Zinc Plated Grade 2 / A307 Steel Coarse Thread Square Head Bolts

    10+ in stock

    Diameter: 1/4"Length: 1"Material: SteelFinish: ZincHead Style: Square (3/8" Wrench)Thread Size: 20 (Coarse)Hardness: Grade 2 / A307Type: Square Hea...

    View full details
    Original price $5.20 - Original price $5.20
    Original price
    $5.20
    $5.20 - $5.20
    Current price $5.20