Mutual Screw & Supply

3/8-16 X 6" Machine Screws | Truss Head Combination Drive | Steel Zinc Plated (100 / Pkg.)

3/8-16 X 6" Machine Screws | Truss Head Combination Drive | Steel Zinc Plated - Main image
$88.59 $124.78 In stock

Zinc-plated steel machine screw for general-purpose fastening. The zinc coating adds corrosion resistance for indoor and light outdoor use.

Specs

  • Dimensions: 3/8-16 6"
  • Drive type: Combination
  • Head style: Truss Head
  • Material: Steel Zinc Plated
  • Thread: 3/8-16 UNC (coarse)

Features

  • Machine-thread screws for use with nuts or tapped holes
  • Truss head profile
  • Combination drive
  • Steel Zinc Plated construction
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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)

Ava J. ★★★★★

Packed a full box of these for a shed frame repair and every single one threaded cleanly into the pilot holes—no stripped heads, no bent shafts. The zinc finish looks even and should hold up fine against the occasional damp morning out here.

Henry ★★★★★

The combination drive is a real plus—I can grab a Phillips or flathead depending on what’s within reach. Finish is smooth and the threads cut cleanly into steel; I’ve already used half the box on a garage rack and they’re holding solid.

Matthew ★★★★★

The combination drive on these screws is a nice touch—lets me use either a Phillips or flathead without switching bits. They threaded cleanly into my steel brackets with no binding, and the zinc plating looks even and consistent across all 100 pieces.