Mutual Screw & Supply

5/16-18 X 6" Machine Screws | Truss Head Combination Drive | Steel Zinc Plated (100 / Pkg.)

5/16-18 X 6" Machine Screws | Truss Head Combination Drive | Steel Zinc Plated - Main image
$53 $84.13 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: 5/16-18 6"
  • Drive type: Combination
  • Head style: Truss Head
  • Material: Steel Zinc Plated
  • Thread: 5/16-18 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 (5.0 / 5 · 5 reviews)

Carter ★★★★★

The combination drive made it easy to install these with either a Phillips bit or a wrench. Used them to secure a heavy shelf bracket, and they held up great without any rust so far. Nice, sturdy feel for the price.

Samuel Q. ★★★★★

Used them to bolt down a workbench leg that kept wobbling, and the 6-inch length gave plenty of bite into the wood frame. The zinc finish is holding up fine after a few humid weeks in the garage, no rust spots yet. Combination head means I grabbed whatever driver was closest and it just worked.

Miles ★★★★★

The combination drive is a lifesaver when you're swapping between a Phillips bit and a flathead without hunting for the right tool. These screws threaded cleanly into my steel brackets and the zinc coating looks like it'll hold up fine in the garage.