Mutual Screw & Supply

1/2-13 X 3-3/4" Carriage Bolts | Fully Threaded | 316 Stainless Steel (25 / Pkg.)

1/2-13 X 3-3/4" Carriage Bolts | Fully Threaded | 316 Stainless Steel (25 / - Main image
$28.22 $44.09 In stock

1/2-13 X 3-3/4" 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: 3-3/4"
  • Threads Per Inch: 13
  • Material: 316 Stainless Steel
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 25
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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 (4.4 / 5 · 5 reviews)

Madison X. ★★★★★

The 316 stainless steel feels heavier and more corrosion-resistant than the cheaper zinc ones I’ve used before. These fully threaded carriage bolts tightened smoothly into pressure-treated wood without any stripping.

Claire ★★★★★

Installed these on a dock repair and the 316 stainless is already handling salt spray better than the old zinc ones ever did. The fully threaded shaft let me adjust the nut depth exactly where I needed it without any extra washers.

Eli ★★★★★

The square neck grabbed into the wood perfectly on my deck rebuild, no spinning at all. These bolts feel solid and the 316 stainless should stand up to the weather here.