Mutual Screw & Supply

1/4-20 X 2-1/4" Carriage Bolts | Fully Threaded | A307 Grade A Zinc Plated Steel (300 / Pkg.)

1/4-20 X 2-1/4" Carriage Bolts | Fully Threaded | A307 Grade A Zinc Plated - Main image
$16.18 $21.57 In stock

1/4-20 X 2-1/4" 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: 2-1/4"
  • 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)

Robert S. ★★★★★

The square neck on these carriage bolts grabs the wood really well, so they don't spin while you're tightening the nut. I've already used about half the box building a workbench and every single one threaded cleanly. For the price, you get a lot of good hardware that feels solid.

Leo ★★★★★

These bolts came in a sturdy box and every single one has a nice, even zinc coating. I used them for a deck repair and the fully threaded shaft gave me plenty of bite into the wood.

Hannah ★★★★★

The square neck on these bolts bites into the wood perfectly, so I didn’t need a second wrench to hold them still while tightening. All 300 came out of the box with the threads clean and the plating intact, which made the whole fence project go a lot faster than I expected.