Mutual Screw & Supply

5/16-18 X 2" Carriage Bolts | Fully Threaded | A307 Grade A Zinc Plated Steel (250 / Pkg.)

5/16-18 X 2" Carriage Bolts | Fully Threaded | A307 Grade A Zinc Plated Steel - Main image
$17.02 $23.64 In stock

5/16-18 X 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
  • Fully Threaded
  • Sold in bulk packs

Specifications

  • Thread Size: 5/16-18
  • Length: 2"
  • Threads Per Inch: 18
  • Material: A307 Grade A Zinc Plated Steel
  • Finish: Zinc Plated
  • Thread Style: Fully Threaded
  • Pack Quantity: 125
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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 (4.8 / 5 · 5 reviews)

Ava ★★★★★

The square neck on these grabbed the wood immediately with no spinning—exactly what I needed for building a sturdy play set. The zinc plating looks clean and should hold up fine in the weather.

Christopher Z. ★★★★★

I've been using these carriage bolts for a deck project and the fully threaded design made installation much smoother than I expected. The zinc plating looks clean and should hold up well against moisture.

Eli F. ★★★★★

The square neck under the head really grabbed into the wood just as described, which made tightening them a breeze. For a 250-pack, the zinc plating on these A307 bolts looks consistent and clean. I'm glad I grabbed this bulk box for my deck repairs.