Mutual Screw & Supply

3/8" X 12" Hex Head Lag Screws | 316 Stainless Steel (75 / Pkg.)

3/8" X 12" Hex Head Lag Screws | 316 Stainless Steel (75 / Pkg.) - Main image
$793.27 $1149.66 In stock

These 3/8" x 12" lag screws are manufactured from 316 Stainless Steel for corrosion resistance. They deliver strong holding power for heavy-duty wood-to-wood and structural timber connections.

  • Material and finish: 316 Stainless Steel
  • Size: 3/8" x 12"
  • Applications: Heavy-duty wood and structural timber connections

Specifications

  • Product type: Lag Screws
  • Head style: Hex
  • Material: 316 Stainless Steel
  • Finish: Plain
  • Diameter: 3/8"
  • Length: 12"
  • Thread size: 3/8
  • Measurement type: Imperial
  • Pack quantity: 75 per package
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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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Returning an item

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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)

Leo N. ★★★★★

Finally, a lag screw that doesn't strip out when driving into dense oak—these 316 stainless ones bit in cleanly and the threads held perfectly. The 12-inch length gave me the extra bite I needed for a heavy timber beam repair.

Zoe ★★★★★

Put in 75 of these across a timber frame tie-down and they drove in clean without a single bent shaft. The 316 stainless heads held up through a week of coastal rain with zero surface rust, which is exactly what I needed for exterior work.

Joseph ★★★★★

I was a little worried about stripped threads on a 12-inch fastener, but these cut into the timber cleanly and the 316 stainless finish is flawless. Perfect for the deck frame I’m building near salt water, and the 75-count box means I’ve got plenty of spares.