Mutual Screw & Supply

3/8-16 X 2-3/4" Carriage Bolts | Fully Threaded | A307 Grade A Plain Steel (500 / Pkg.)

3/8-16 X 2-3/4" Carriage Bolts | Fully Threaded | A307 Grade A Plain Steel (500 - Main image
$75.33 $112.44 In stock

3/8-16 X 2-3/4" 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: 3/8-16
  • Length: 2-3/4"
  • Threads Per Inch: 16
  • Material: A307 Grade A Plain Steel
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 500
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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 (4.8 / 5 · 5 reviews)

Mia ★★★★★

Put these on a garden trellis I'm building, the square neck really does bite into the wood and keeps them from spinning while I tighten the nut. The threads are clean and they seated perfectly in my pre-drilled holes.

Hannah ★★★★★

The square neck on these carriage bolts gripped the wood perfectly as I tightened them, no spinning at all. For the price per bolt, this bulk box was a solid deal for my fence repairs.

Avery ★★★★★

I needed a full box for a deck project, and these bolts have consistent threading that made installation smooth. The rounded head gives a clean, finished look against the wood.