Mutual Screw & Supply

1/4-20 X 6-1/2" Carriage Bolts | A307 Grade A Plain Steel (425 / Pkg.)

1/4-20 X 6-1/2" Carriage Bolts | A307 Grade A Plain Steel (425 / Pkg.) - Main image
$56.84 $91.67 In stock

1/4-20 X 6-1/2" 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
  • Sold in bulk packs

Specifications

  • Thread Size: 1/4-20
  • Length: 6-1/2"
  • Threads Per Inch: 20
  • Material: A307 Grade A Plain Steel
  • Finish: Plain
  • Pack Quantity: 425
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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)

Scarlett S. ★★★★★

The square neck on these bolts grabbed the wood immediately, no spinning while I tightened them down. A full box of 425 means I have plenty left over for the next project.

Lucy ★★★★★

The 6-1/2 inch length was exactly what I needed for sandwiching thick lumber together, and the plain steel threads cut cleanly without binding.

Henry ★★★★★

After spending a whole afternoon building a heavy-duty workbench, I'm relieved these 6.5-inch carriage bolts threaded perfectly into my pre-drilled holes without any stripping. The square neck grabbed the wood just like it's supposed to, and the plain steel finish gives a solid, no-nonsense feel.