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

Plain Steel Hex Bolts

  • 5/16"-18 x 5" Zinc Plated Grade 2 / A307 Steel Coarse Thread Hex Bolts
    $24.81 - $35.90
    $24.81 - $35.90
    $24.81 - $35.90
    $24.81

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

    10+ in stock

    Diameter: 5/16"Length: 5"Material: SteelFinish: ZincHead Style: Hex (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 7/8"Hardness: Grade 2 / A30...

    View full details
    $24.81 - $35.90
    $24.81 - $35.90
    $24.81 - $35.90
    $24.81
  • 5/16"-18 x 3" Zinc Plated Grade 2 / A307 Steel Coarse Thread Hex Bolts
    $25.94 - $35.90
    $25.94 - $35.90
    $25.94 - $35.90
    $25.94

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

    10+ in stock

    Diameter: 5/16"Length: 3"Material: SteelFinish: ZincHead Style: Hex (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 7/8"Hardness: Grade 2 / A30...

    View full details
    $25.94 - $35.90
    $25.94 - $35.90
    $25.94 - $35.90
    $25.94
  • 5/16"-18 x 2-1/2" Zinc Plated Grade 2 / A307 Steel Coarse Thread Hex Bolts
    $23.48 - $35.90
    $23.48 - $35.90
    $23.48 - $35.90
    $23.48

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

    10+ in stock

    Diameter: 5/16"Length: 2-1/2"Material: SteelFinish: ZincHead Style: Hex (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 7/8"Hardness: Grade 2 /...

    View full details
    $23.48 - $35.90
    $23.48 - $35.90
    $23.48 - $35.90
    $23.48
  • 5/16"-18 x 2" Zinc Plated Grade 2 / A307 Steel Coarse Thread Hex Bolts
    $18.21 - $35.90
    $18.21 - $35.90
    $18.21 - $35.90
    $18.21

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

    10+ in stock

    Diameter: 5/16"Length: 2"Material: SteelFinish: ZincHead Style: Hex (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 7/8"Hardness: Grade 2 / A30...

    View full details
    $18.21 - $35.90
    $18.21 - $35.90
    $18.21 - $35.90
    $18.21
  • 5/16"-18 x 1-1/2" Zinc Plated Grade 2 / A307 Steel Coarse Thread Hex Bolts
    $15.21 - $35.90
    $15.21 - $35.90
    $15.21 - $35.90
    $15.21

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

    10+ in stock

    Diameter: 5/16"Length: 1-1/2"Material: SteelFinish: ZincHead Style: Hex (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 7/8"Hardness: Grade 2 /...

    View full details
    $15.21 - $35.90
    $15.21 - $35.90
    $15.21 - $35.90
    $15.21
  • 5/16"-18 x 1-1/4" Zinc Plated Grade 2 / A307 Steel Coarse Thread Hex Bolts
    $13.63 - $35.90
    $13.63 - $35.90
    $13.63 - $35.90
    $13.63

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

    10+ in stock

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

    View full details
    $13.63 - $35.90
    $13.63 - $35.90
    $13.63 - $35.90
    $13.63
  • 5/16"-18 x 1" Zinc Plated Grade 2 / A307 Steel Coarse Thread Hex Bolts
    $12.30 - $35.90
    $12.30 - $35.90
    $12.30 - $35.90
    $12.30

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

    10+ in stock

    Diameter: 5/16"Length: 1"Material: SteelFinish: ZincHead Style: Hex (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 1"Hardness: Grade 2 / A307T...

    View full details
    $12.30 - $35.90
    $12.30 - $35.90
    $12.30 - $35.90
    $12.30
  • 5/16"-18 x 3/4" Zinc Plated Grade 2 / A307 Steel Coarse Thread Hex Bolts
    $10.89 - $35.90
    $10.89 - $35.90
    $10.89 - $35.90
    $10.89

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

    10+ in stock

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

    View full details
    $10.89 - $35.90
    $10.89 - $35.90
    $10.89 - $35.90
    $10.89
  • 5/16"-18 x 2" Zinc Plated Steel Coarse Full Thread Hex Head Tap Bolts
    $5.03 - $18.43
    $5.03 - $18.43
    $5.03 - $18.43
    $5.03

    5/16"-18 x 2" Zinc Plated Steel Coarse Full Thread Hex Head Tap Bolts

    10+ in stock

    Diameter: 5/16"Length: 2"Material: SteelFinish: ZincHead Style: Hex (1/2" Wrench)Thread Size: 18 (Coarse)Style: Full ThreadType: Tap BoltA tap bolt...

    View full details
    $5.03 - $18.43
    $5.03 - $18.43
    $5.03 - $18.43
    $5.03
  • 5/16"-18 x 1-1/2" Zinc Plated Steel Coarse Full Thread Hex Head Tap Bolts
    $3.91 - $14.50
    $3.91 - $14.50
    $3.91 - $14.50
    $3.91

    5/16"-18 x 1-1/2" Zinc Plated Steel Coarse Full Thread Hex Head Tap Bolts

    10+ in stock

    Diameter: 5/16"Length: 1-1/2"Material: SteelFinish: ZincHead Style: Hex (1/2" Wrench)Thread Size: 18 (Coarse)Style: Full ThreadType: Tap BoltA tap ...

    View full details
    $3.91 - $14.50
    $3.91 - $14.50
    $3.91 - $14.50
    $3.91
  • 5/16"-18 x 3" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts
    $8.64 - $8.64
    $8.64
    $8.64 - $8.64
    $8.64

    5/16"-18 x 3" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts

    10+ in stock

    Diameter: 5/16"Length: 3"Material: SteelFinish: Yellow ZincHead Style: Hex Washer (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 1" to 2"Hardn...

    View full details
    $8.64 - $8.64
    $8.64
    $8.64 - $8.64
    $8.64
  • 5/16"-18 x 2-1/2" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts
    $8.75 - $8.75
    $8.75
    $8.75 - $8.75
    $8.75

    5/16"-18 x 2-1/2" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts

    10+ in stock

    Diameter: 5/16"Length: 2-1/2"Material: SteelFinish: Yellow ZincHead Style: Hex Washer (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 1" to 2"H...

    View full details
    $8.75 - $8.75
    $8.75
    $8.75 - $8.75
    $8.75
  • 5/16"-18 x 2-1/4" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts
    $8.15 - $8.15
    $8.15
    $8.15 - $8.15
    $8.15

    5/16"-18 x 2-1/4" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts

    10+ in stock

    Diameter: 5/16"Length: 2-1/4"Material: SteelFinish: Yellow ZincHead Style: Hex Washer (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 1" to 2"H...

    View full details
    $8.15 - $8.15
    $8.15
    $8.15 - $8.15
    $8.15
  • 5/16"-18 x 2" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts
    $7.67 - $7.67
    $7.67
    $7.67 - $7.67
    $7.67

    5/16"-18 x 2" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts

    10+ in stock

    Diameter: 5/16"Length: 2"Material: SteelFinish: Yellow ZincHead Style: Hex Washer (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 1" to 2"Hardn...

    View full details
    $7.67 - $7.67
    $7.67
    $7.67 - $7.67
    $7.67
  • 5/16"-18 x 1-3/4" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts
    $9.00 - $9.00
    $9.00
    $9.00 - $9.00
    $9.00

    5/16"-18 x 1-3/4" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts

    10+ in stock

    Diameter: 5/16"Length: 1-3/4"Material: SteelFinish: Yellow ZincHead Style: Hex Washer (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 1" to 2"H...

    View full details
    $9.00 - $9.00
    $9.00
    $9.00 - $9.00
    $9.00
  • 5/16"-18 x 1-1/4" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts
    $8.62 - $8.62
    $8.62
    $8.62 - $8.62
    $8.62

    5/16"-18 x 1-1/4" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts

    10+ in stock

    Diameter: 5/16"Length: 1-1/4"Material: SteelFinish: Yellow ZincHead Style: Hex Washer (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: FullHardn...

    View full details
    $8.62 - $8.62
    $8.62
    $8.62 - $8.62
    $8.62
  • 5/16"-18 x 1" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts
    $8.20 - $8.20
    $8.20
    $8.20 - $8.20
    $8.20

    5/16"-18 x 1" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts

    10+ in stock

    Diameter: 5/16"Length: 1"Material: SteelFinish: Yellow ZincHead Style: Hex Washer (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: FullHardness:...

    View full details
    $8.20 - $8.20
    $8.20
    $8.20 - $8.20
    $8.20
  • 5/16"-18 x 3/4" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts
    $8.66 - $8.66
    $8.66
    $8.66 - $8.66
    $8.66

    5/16"-18 x 3/4" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts

    10+ in stock

    Diameter: 5/16"Length: 3/4"Material: SteelFinish: Yellow ZincHead Style: Hex Washer (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: FullHardnes...

    View full details
    $8.66 - $8.66
    $8.66
    $8.66 - $8.66
    $8.66
  • 5/16"-18 x 5" Zinc Plated Steel Coarse Full Thread Hex Head Tap Bolts
    $9.28 - $9.28
    $9.28
    $9.28 - $9.28
    $9.28

    5/16"-18 x 5" Zinc Plated Steel Coarse Full Thread Hex Head Tap Bolts

    10+ in stock

    Diameter: 5/16"Length: 5"Material: SteelFinish: ZincHead Style: Hex (1/2" Wrench)Thread Size: 18 (Coarse)Style: Full ThreadType: Tap BoltBox of 8.A...

    View full details
    $9.28 - $9.28
    $9.28
    $9.28 - $9.28
    $9.28
  • 5/16"-18 x 4" Zinc Plated Steel Coarse Full Thread Hex Head Tap Bolts
    $8.12 - $8.12
    $8.12
    $8.12 - $8.12
    $8.12

    5/16"-18 x 4" Zinc Plated Steel Coarse Full Thread Hex Head Tap Bolts

    10+ in stock

    Diameter: 5/16"Length: 4"Material: SteelFinish: ZincHead Style: Hex (1/2" Wrench)Thread Size: 18 (Coarse)Style: Full ThreadType: Tap BoltBox of 8.A...

    View full details
    $8.12 - $8.12
    $8.12
    $8.12 - $8.12
    $8.12
  • 5/16"-18 x 3" Zinc Plated Steel Coarse Full Thread Hex Head Tap Bolts
    $7.90 - $7.90
    $7.90
    $7.90 - $7.90
    $7.90

    5/16"-18 x 3" Zinc Plated Steel Coarse Full Thread Hex Head Tap Bolts

    10+ in stock

    Diameter: 5/16"Length: 3"Material: SteelFinish: ZincHead Style: Hex (1/2" Wrench)Thread Size: 18 (Coarse)Style: Full ThreadType: Tap BoltBox of 8.A...

    View full details
    $7.90 - $7.90
    $7.90
    $7.90 - $7.90
    $7.90
  • 5/16"-18 x 2-1/2" Zinc Plated Steel Coarse Full Thread Hex Head Tap Bolts
    $8.37 - $8.37
    $8.37
    $8.37 - $8.37
    $8.37

    5/16"-18 x 2-1/2" Zinc Plated Steel Coarse Full Thread Hex Head Tap Bolts

    10+ in stock

    Diameter: 5/16"Length: 2-1/2"Material: SteelFinish: ZincHead Style: Hex (1/2" Wrench)Thread Size: 18 (Coarse)Style: Full ThreadType: Tap BoltBox of...

    View full details
    $8.37 - $8.37
    $8.37
    $8.37 - $8.37
    $8.37
  • 5/16"-18 x 3" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts
    $8.03 - $8.03
    $8.03
    $8.03 - $8.03
    $8.03

    5/16"-18 x 3" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts

    10+ in stock

    Diameter: 5/16"Length: 3"Material: SteelFinish: Yellow ZincHead Style: Hex Washer (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 1" to 2"Hardn...

    View full details
    $8.03 - $8.03
    $8.03
    $8.03 - $8.03
    $8.03
  • 5/16"-18 x 2-1/2" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts
    $7.25 - $7.25
    $7.25
    $7.25 - $7.25
    $7.25

    5/16"-18 x 2-1/2" Zinc Plated Grade 8 Steel Coarse Thread Hex Washer Head Flange Bolts

    10+ in stock

    Diameter: 5/16"Length: 2-1/2"Material: SteelFinish: Yellow ZincHead Style: Hex Washer (1/2" Wrench)Thread Size: 18 (Coarse)Thread Length: 1" to 2"H...

    View full details
    $7.25 - $7.25
    $7.25
    $7.25 - $7.25
    $7.25