Mutual Screw & Supply

1/4-20 X 8" Carriage Bolts | A307 Grade A Zinc Plated Steel (100 / Pkg.)

1/4-20 X 8" Carriage Bolts | A307 Grade A Zinc Plated Steel (100 / Pkg.) - Main image
$17.43 $28.58 In stock

1/4-20 X 8" Carriage Bolts in A307 Grade A Zinc Plated Steel. Carriage bolts feature a smooth, rounded head with a square neck underneath that pulls into the material to prevent the bolt from turning during installation, making them ideal for wood-to-wood and wood-to-metal connections.

  • Domed head with square anti-rotation neck
  • A307 Grade A Zinc Plated Steel construction
  • Coarse thread for use in wood and with nuts and washers
  • Sold in bulk packs

Specifications

  • Thread Size: 1/4-20
  • Length: 8"
  • Threads Per Inch: 20
  • Material: A307 Grade A Zinc Plated Steel
  • Finish: Zinc Plated
  • Pack Quantity: 100
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Kevin ★★★★★

The square neck design really locks these bolts in place—no more spinning while I'm tightening. They're perfectly sized for the raised bed frames I'm building.

Joseph D. ★★★★★

Finally got around to replacing the rusty hardware on my garden gate—the square neck on these grabbed the wood perfectly, no spinning. The zinc plating has a clean, even finish that looks like it'll hold up much better than the old ones.

Jacob ★★★★★

The square neck on these carriage bolts grabbed instantly as I drove them into the wood, saving me a lot of frustration. Exactly the right length for a 2x4 assembly I’m building.