Mutual Screw & Supply

1/2-13 X 4" Carriage Bolts | Fully Threaded | 316 Stainless Steel (25 / Pkg.)

1/2-13 X 4" Carriage Bolts | Fully Threaded | 316 Stainless Steel (25 / Pkg.) - Main image
$35.69 $47.58 In stock

1/2-13 X 4" Carriage Bolts in 316 Stainless 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
  • 316 Stainless Steel construction
  • Coarse thread for use in wood and with nuts and washers
  • Fully Threaded
  • Sold in bulk packs

Specifications

  • Thread Size: 1/2-13
  • Length: 4"
  • Threads Per Inch: 13
  • Material: 316 Stainless Steel
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 25
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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 (5.0 / 5 · 5 reviews)

Claire ★★★★★

The square neck on these grabbed the wood perfectly, no spinning at all during installation. Used them for a deck repair and they feel solid and corrosion-resistant.

John M. ★★★★★

Finally a set of 316 stainless bolts that actually feel substantial, not flimsy like the cheap zinc ones I’ve used before. The full threading makes tightening them up a breeze without having to hold the head.

Isabella ★★★★★

The square neck design on these carriage bolts really does grip the material well, making installation much smoother than with standard bolts. I used them for a heavy-duty gate hinge and the 316 stainless feels solid and corrosion-resistant.