Mutual Screw & Supply

3/8" X 5-1/2" Hex Head Lag Screws | 18/8 Stainless Steel (200 / Pkg.)

3/8" X 5-1/2" Hex Head Lag Screws | 18/8 Stainless Steel (200 / Pkg.) - Main image
$127.37 $179.39 In stock

These 3/8" x 5-1/2" lag screws are manufactured from 18/8 Stainless Steel for corrosion resistance. They deliver strong holding power for heavy-duty wood-to-wood and structural timber connections.

  • Material and finish: 18/8 Stainless Steel
  • Size: 3/8" x 5-1/2"
  • Applications: Heavy-duty wood and structural timber connections

Specifications

  • Product type: Lag Screws
  • Head style: Hex
  • Material: 18/8 Stainless Steel
  • Finish: Plain
  • Diameter: 3/8"
  • Length: 5-1/2"
  • Thread size: 3/8
  • Measurement type: Imperial
  • Pack quantity: 200 per package
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Standard 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)

James Z. ★★★★★

I was worried these might strip out in dense oak, but the self-tapping point grabbed cleanly and the 18/8 stainless heads sank flush without a single burr. They should hold up perfectly in our deck rebuild.

Matthew P. ★★★★★

The heads are perfectly machined so my socket wrench grabs them clean every time, and the stainless steel took the weather without a single rust spot after a month on the deck. I used them for tying the pergola beams to the posts and they drove in straight without stripping.

Evelyn ★★★★★

Pulled out my old galvanized screws and swapped them for these after finding surface rust on a few. The 18/8 stainless finish is holding up beautifully through a wet spring on my pergola frame, and the hex head grabbed a socket wrench without any stripping.