Mutual Screw & Supply

1/4-20 X 8" Carriage Bolts | A307 Grade A Plain Steel (250 / Pkg.)

1/4-20 X 8" Carriage Bolts | A307 Grade A Plain Steel (250 / Pkg.) - Main image
$39.78 $65.21 In stock

1/4-20 X 8" 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: 1/4-20
  • Length: 8"
  • Threads Per Inch: 20
  • Material: A307 Grade A Plain Steel
  • Finish: Plain
  • Pack Quantity: 250
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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)

Jacob ★★★★★

That square neck under the head really grabs the wood and stops any spinning, which made driving these into the deck frame a one-person job. The plain steel finish feels sturdy for the price, and having a full 250 count means I’ve got plenty left over for future projects.

Zoe M. ★★★★★

The square neck on these bolts grabbed into the wood perfectly, no spinning while tightening. Exactly what I needed for attaching heavy framing, and the plain steel finish is clean and uniform across all 250 pieces.

Nicholas ★★★★★

Needed a full box of these for a deck project and the square neck really did its job grabbing into the wood—no spinning at all. They're plain steel, so I hit them with a coat of paint, but the threads are clean and drive smoothly.