Mutual Screw & Supply

5/8-11 X 15" Carriage Bolts | A307 Grade A Plain Steel (35 / Pkg.)

5/8-11 X 15" Carriage Bolts | A307 Grade A Plain Steel (35 / Pkg.) - Main image
$90.16 $130.67 In stock

5/8-11 X 15" 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: 15"
  • Threads Per Inch: 11
  • Material: A307 Grade A Plain Steel
  • Finish: Plain
  • Pack Quantity: 35
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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 (4.0 / 5 · 5 reviews)

Daniel N. ★★★★★

The square neck on these 5/8" bolts grabbed the wood immediately, no spinning at all. Exactly what I needed for heavy timber framing, and the plain steel finish is holding up fine in my dry workshop.

Sofia E. ★★★★★

Needed 15-inch carriage bolts for a heavy timber repair and these were exactly the right size. The square neck grabbed the wood perfectly on the first try, no spinning at all.

Emily ★★★★☆

For the price, these 5/8" carriage bolts handle heavy deck framing work without breaking the bank. The plain steel finish means I'll need to paint them for outdoor use, but the square neck grips tight enough to let me tighten with one wrench.