Mutual Screw & Supply

3/8-16 X 1-1/2" Carriage Bolts | Fully Threaded | 316 Stainless Steel (100 / Pkg.)

3/8-16 X 1-1/2" Carriage Bolts | Fully Threaded | 316 Stainless Steel (100 / - Main image
$34.22 $48.88 In stock

3/8-16 X 1-1/2" 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: 1-1/2"
  • Threads Per Inch: 16
  • Material: 316 Stainless Steel
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 100
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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 (4.6 / 5 · 5 reviews)

Steven G. ★★★★★

The square neck grabbed perfectly into the pressure-treated wood, no spinning at all on the first try. These bolts are solid enough for a dock repair I’ve been putting off.

Henry R. ★★★★★

The 316 stainless makes these feel way more substantial than the cheaper zinc ones I’ve used before, and the fully threaded shaft gave me a solid grip for a deck repair. The square neck seated itself perfectly with just a few hammer taps, so I didn’t have to wrestle a wrench to keep them from spinni

Sofia ★★★★★

The square neck grabbed the wood instantly on my deck project, so no wrench needed to hold them still while I tightened the nut. The 316 stainless finish has a nice heft to it, and the fully threaded shaft made stacking washers easy.