Mutual Screw & Supply

3/8-16 X 1-1/2" Carriage Bolts | Fully Threaded | A307 Grade A Plain Steel (825 / Pkg.)

3/8-16 X 1-1/2" Carriage Bolts | Fully Threaded | A307 Grade A Plain Steel (825 - Main image
$84.39 $120.55 In stock

3/8-16 X 1-1/2" 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: 1-1/2"
  • Threads Per Inch: 16
  • Material: A307 Grade A Plain Steel
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 825
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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)

Andrew ★★★★★

Finally got around to building a new gate and these bolts were perfect for the job. The 825 count is way more than I need, but the fully threaded shaft makes them versatile for different thicknesses of wood.

Madison C. ★★★★★

The square neck grabbed instantly into the treated lumber I was using, no spinning at all while I tightened them down. Even with over 800 bolts, every single one had clean, consistent threads that made assembly on my deck project a breeze.

Adam ★★★★★

Installed about a dozen of these today for a deck repair and the square neck under the head really does keep them from spinning. The plain steel finish is exactly what I needed for a quick indoor project.