Mutual Screw & Supply

1/2-13 X 8-1/2" Carriage Bolts | A307 Grade A Zinc Plated Steel (20 / Pkg.)

1/2-13 X 8-1/2" Carriage Bolts | A307 Grade A Zinc Plated Steel (20 / Pkg.) - Main image
$20.63 $27.5 In stock

1/2-13 X 8-1/2" 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: 8-1/2"
  • Threads Per Inch: 13
  • Material: A307 Grade A Zinc Plated Steel
  • Finish: Zinc Plated
  • Pack Quantity: 10
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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 (5.0 / 5 · 5 reviews)

Ava H. ★★★★★

The square neck grabbed perfectly into my treated lumber, so these bolts didn't spin at all while I tightened the nuts. Zinc plating looks clean and held up fine during a few hours of rain last weekend.

Avery C. ★★★★★

Had a project that needed these exact carriage bolts and the zinc plating on this batch was uniform with no rough spots. The 8-1/2 inch length worked perfectly for the heavy beam I was fastening, and the square neck seated securely without spinning.

Claire T. ★★★★★

The square neck grabbed perfectly into the wood on my deck project, no spinning at all. These 8-1/2 inch carriage bolts feel solid and the rounded head looks clean once installed.