Mutual Screw & Supply

5/16-18 X 1-3/4" Machine Screws | Round Head Slotted Drive | Plain Steel (200 / Pkg.)

5/16-18 X 1-3/4" Machine Screws | Round Head Slotted Drive | Plain Steel (200 / - Main image
$25.08 $39.18 In stock

Plain (uncoated) steel machine screw for general-purpose, indoor fastening where corrosion resistance is not required.

Specs

  • Dimensions: 5/16-18 1-3/4"
  • Drive type: Slotted
  • Head style: Round Head
  • Material: Plain Steel
  • Thread: 5/16-18 UNC (coarse)

Features

  • Machine-thread screws for use with nuts or tapped holes
  • Round head profile
  • Slotted drive
  • Plain Steel construction
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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)

Hannah C. ★★★★★

I needed some sturdy fasteners for a workbench assembly and these machine screws were perfect—the 1-3/4 inch length gave just enough grip for thick wood. The slotted drive was easy to tighten with a standard screwdriver, no stripping issues at all.

George J. ★★★★★

These screws are a bit tricky to turn with a regular screwdriver because of the slotted head, but once you get them in, they hold tight and haven't stripped on me. The plain steel finish looks exactly like what I needed for my workbench project. Exactly what you'd expect for a solid indoor fastener.

Lily G. ★★★★★

I needed a bunch of 5/16-18 machine screws for a wooden jig I'm building, and these 1-3/4" round heads are exactly the right length and grip. The slotted drive takes a flathead screwdriver fine, though I wish they had a Phillips option for faster driving with a drill.