Mutual Screw & Supply

3/8-16 X 5-1/2" Carriage Bolts | Fully Threaded | 316 Stainless Steel (50 / Pkg.)

3/8-16 X 5-1/2" Carriage Bolts | Fully Threaded | 316 Stainless Steel (50 / - Main image
$57.86 $78.19 In stock

3/8-16 X 5-1/2" 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: 3/8-16
  • Length: 5-1/2"
  • Threads Per Inch: 16
  • Material: 316 Stainless Steel
  • Finish: Plain
  • Thread Style: Fully Threaded
  • 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)

Andrew ★★★★★

Used these to rebuild a heavy wooden gate, and the square neck really kept them from spinning as I tightened them down. The 316 stainless has a nice weight and seems built for coastal weather. Exactly what I needed for a tough outdoor job.

Daniel H. ★★★★★

These bolts are the perfect length for my deck project and the 316 stainless feels like it will hold up much better than the cheaper zinc ones I've used before. The square neck kept them from spinning while I tightened them down, which saved a lot of frustration.

Adam X. ★★★★★

The square neck grabbed perfectly into the wood on my dock project, so these 316 stainless bolts didn't spin at all while I tightened them. The fully threaded length made it easy to cut them down exactly where I needed.