Mutual Screw & Supply

1/2-13 X 4" Carriage Bolts | Fully Threaded | A307 Grade A Plain Steel (30 / Pkg.)

1/2-13 X 4" Carriage Bolts | Fully Threaded | A307 Grade A Plain Steel (30 / - Main image
$10.62 $16.59 In stock

1/2-13 X 4" Carriage Bolts in A307 Grade A Plain 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 Plain Steel construction
  • Coarse thread for use in wood and with nuts and washers
  • Fully Threaded
  • Sold in bulk packs

Specifications

  • Thread Size: 1/2-13
  • Length: 4"
  • Threads Per Inch: 13
  • Material: A307 Grade A Plain Steel
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 10
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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)

Penelope L. ★★★★★

The square neck grabbed into the wood really well, so I didn't need to hold the bolt while tightening from the other side. For a 30-pack of these 4-inch carriage bolts, the price felt fair given how solid the steel seems. I used them to rebuild a garden bench and everything stayed snug.

Violet ★★★★★

The square neck grabbed the wood right away on my deck project, no extra wrench needed to hold it still while I cranked the nut down. I used all thirty to build a picnic table frame, and they’re solid enough to trust with heavy weight.

Emily X. ★★★★★

The square neck grabbed perfectly into the wood as I tightened them, which was a huge relief since I was working alone on a deck repair. These 4-inch carriage bolts are a solid choice for heavy-duty projects, and the 30-pack is great to have on hand.