Mutual Screw & Supply

3/8-16 X 5-1/2" Machine Screws | Round Head Slotted Drive | Steel Zinc Plated (100 / Pkg.)

3/8-16 X 5-1/2" Machine Screws | Round Head Slotted Drive | Steel Zinc Plated - Main image
$76.25 $104.45 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 5-1/2"
  • Drive type: Slotted
  • Head style: Round Head
  • Material: Steel Zinc Plated
  • Thread: 3/8-16 UNC (coarse)

Features

  • Machine-thread screws for use with nuts or tapped holes
  • Round head profile
  • Slotted drive
  • Steel Zinc Plated construction
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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 (4.2 / 5 · 5 reviews)

Matthew ★★★★★

Used these to fasten a wooden railing bracket to a steel post and they threaded perfectly without stripping. The zinc coating seems solid and should hold up fine in my garage. Exactly the right length for the job.

David ★★★★★

These are exactly the right length for securing my deck railing posts, and the 5-1/2" size saves me from stacking washers like I used to. The slotted heads bite the screwdriver well, no stripping even when I really cranked them down.

Owen ★★★★☆

Ordered these for a small metal shelf project and the 5.5-inch length was exactly what I needed. The slotted drive works fine with a standard screwdriver, though a Phillips would have been more convenient.