Mutual Screw & Supply

5/8-11 X 8-1/2" Carriage Bolts | A307 Grade A Plain Steel (10 / Pkg.)

5/8-11 X 8-1/2" Carriage Bolts | A307 Grade A Plain Steel (10 / Pkg.) - Main image
$14.48 $19.3 In stock

5/8-11 X 8-1/2" 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: 5/8-11
  • Length: 8-1/2"
  • Threads Per Inch: 11
  • Material: A307 Grade A Plain Steel
  • Finish: Plain
  • Pack Quantity: 5
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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 (4.4 / 5 · 5 reviews)

Owen F. ★★★★★

The square neck grabbed perfectly into the wood frame on my deck rebuild, and the 8-1/2 inch length gave plenty of bite through two layers of treated lumber. These carriage bolts feel solid and the plain steel finish is exactly what I needed for a budget-friendly, heavy-duty install.

Ryan ★★★★★

Installed these on a heavy gate and the rounded heads gave it a really clean look. The square neck bit into the wood just as expected, holding tight without any spinning.

Christopher ★★★★★

Those square necks grabbed the wood perfectly on my deck frame, so I didn't need a second wrench at all. The 8-1/2 inch length was just right for sandwiching two 4x6 beams together.