Mutual Screw & Supply

1/4-20 X 7/8" Carriage Bolts | Fully Threaded | A307 Grade A Plain Steel (400 / Pkg.)

1/4-20 X 7/8" Carriage Bolts | Fully Threaded | A307 Grade A Plain Steel (400 / - Main image
$12.53 $17.4 In stock

1/4-20 X 7/8" 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
  • Fully Threaded
  • Sold in bulk packs

Specifications

  • Thread Size: 1/4-20
  • Length: 7/8"
  • Threads Per Inch: 20
  • Material: A307 Grade A Plain Steel
  • Finish: Plain
  • Thread Style: Fully Threaded
  • 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 (5.0 / 5 · 5 reviews)

Matthew ★★★★★

Just got these for assembling a new shed, and the smooth rounded heads look way cleaner than hex bolts on the wood surface. The square neck really does grip tight so they don’t spin while you’re tightening the nut. No complaints for the price.

Nicholas ★★★★★

Packing a full 400-count box means I won't have to reorder mid-project, and the plain steel finish is exactly what I needed for a fence repair where the bolts will get painted over anyway. They threaded smoothly without any stripped heads during install.

Harper R. ★★★★★

The square neck grabs the wood immediately on the first drive, so no spinning or cursing mid-install. All 400 heads are clean with no burrs, and the plain steel finish is exactly what I expected for the price.