Mutual Screw & Supply

3/8-16 X 10" Carriage Bolts | A307 Grade A Plain Steel (100 / Pkg.)

3/8-16 X 10" Carriage Bolts | A307 Grade A Plain Steel (100 / Pkg.) - Main image
$52.22 $76.79 In stock

3/8-16 X 10" 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
  • Sold in bulk packs

Specifications

  • Thread Size: 3/8-16
  • Length: 10"
  • Threads Per Inch: 16
  • Material: A307 Grade A Plain Steel
  • Finish: Plain
  • Pack Quantity: 100
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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 (4.8 / 5 · 5 reviews)

Madison ★★★★★

The square neck on these grabbed the wood instantly as I torqued them down, no spinning at all. A full box of a hundred ten-inchers for this price is hard to beat, and the plain steel finish is exactly what I needed for an outdoor fence project.

Emily N. ★★★★★

Ten inches of plain A307 steel, and every single one of the hundred came out of the bag straight with clean threads—no bent ones to cull through. The square neck sunk into the oak beam just right, and I didn't have to fight a single spinning bolt during the whole deck repair.

Grace ★★★★★

The square neck grabbed perfectly into the wood on my fence gate, no spinning at all during tightening. These 10-inch bolts gave me plenty of length for a solid connection without needing washers to keep them steady.