Mutual Screw & Supply

1/2-13 X 12-1/2" Carriage Bolts | A307 Grade A Zinc Plated Steel (50 / Pkg.)

1/2-13 X 12-1/2" Carriage Bolts | A307 Grade A Zinc Plated Steel (50 / Pkg.) - Main image
$152.05 $202.73 In stock

1/2-13 X 12-1/2" Carriage Bolts in A307 Grade A Zinc Plated 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 Zinc Plated Steel construction
  • Coarse thread for use in wood and with nuts and washers
  • Sold in bulk packs

Specifications

  • Thread Size: 1/2-13
  • Length: 12-1/2"
  • Threads Per Inch: 13
  • Material: A307 Grade A Zinc Plated Steel
  • Finish: Zinc Plated
  • Pack Quantity: 50
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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)

Ellie ★★★★★

The square neck on these 12-1/2" carriage bolts really digs in and prevents spinning, which was my main frustration with cheaper hardware. The zinc plating looks clean and seems durable so far.

Kevin ★★★★★

I needed some long carriage bolts for a heavy project and these 12-1/2" ones worked perfectly—the square neck pulled right into the wood just as described. They feel solid with the zinc plating looking clean and even.

Lucy A. ★★★★★

The square neck grabbed immediately when I tightened them down into the wood – no spinning at all. These 12-1/2" bolts are solid and the zinc coating looks like it'll hold up fine outdoors.