Mutual Screw & Supply

3/8-16 X 8" Carriage Bolts | 316 Stainless Steel (25 / Pkg.)

3/8-16 X 8" Carriage Bolts | 316 Stainless Steel (25 / Pkg.) - Main image
$65.59 $97.89 In stock

3/8-16 X 8" 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
  • Sold in bulk packs

Specifications

  • Thread Size: 3/8-16
  • Length: 8"
  • Threads Per Inch: 16
  • Material: 316 Stainless Steel
  • Finish: Plain
  • Pack Quantity: 25
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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 (4.8 / 5 · 5 reviews)

Matthew J. ★★★★★

Installed these on a dock repair and the 316 stainless held up perfectly against the saltwater spray. The 8-inch length was just right for the pressure-treated lumber I was fastening through.

Thomas M. ★★★★★

Installed these on a new gangway for my boat, and the 316 stainless held up perfectly during the first saltwater test. The square neck grabbed instantly into the wood, no spinning at all while tightening.

Richard ★★★★★

These are a perfect fit for the dock repair I’ve been needing to do. The 8-inch length is just right for going through the ledger boards, and the square neck grabbed tight so nothing spun on me.