Mutual Screw & Supply

1/4-20 X 2-3/4" Carriage Bolts | Fully Threaded | A307 Grade A Zinc Plated Steel (200 / Pkg.)

1/4-20 X 2-3/4" Carriage Bolts | Fully Threaded | A307 Grade A Zinc Plated - Main image
$13.13 $20.2 In stock

1/4-20 X 2-3/4" 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
  • Fully Threaded
  • Sold in bulk packs

Specifications

  • Thread Size: 1/4-20
  • Length: 2-3/4"
  • Threads Per Inch: 20
  • Material: A307 Grade A Zinc Plated Steel
  • Finish: Zinc Plated
  • Thread Style: Fully Threaded
  • Pack Quantity: 100
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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 (5.0 / 5 · 5 reviews)

Harper ★★★★★

The square neck on these bolts grips the wood perfectly, so they don't spin while I'm tightening them down. I used a full box to rebuild a garden planter, and every single one seated flush with no stripped threads.

William U. ★★★★★

Had a few loose deck boards that these bolts cinched down perfectly—that square neck really grabs tight so nothing spins. The zinc coating looks clean and held up fine through a couple of rainstorms so far.

Thomas ★★★★★

The square neck design really locked these carriage bolts into place while I was building a new deck bench—no spinning or slipping at all. The fully threaded shaft made installation smooth, and the rounded head gives a clean, professional look.