Mutual Screw & Supply

#4-40 X 1/2" Machine Screws | Flat 100° Head Phillips Drive | Steel Zinc Plated (5000 / Pkg.)

#4-40 X 1/2" Machine Screws | Flat 100° Head Phillips Drive | Steel Zinc Plated - Main image
$39.6 $55 In stock

These #4-40 x 1/2" machine screws are manufactured from Steel with a zinc plated finish, featuring a phillips drive and a flat 100 head. They are well suited to fastening metal parts, panels, and enclosures.

  • Material and finish: Steel, Zinc Plated finish
  • Drive: Phillips
  • Head style: Flat 100
  • Thread size: #4-40
  • Length: 1/2"
  • Applications: Fastening metal parts, panels, and enclosures

Specifications

  • Product type: Machine Screws
  • Material: Steel
  • Finish: Zinc Plated
  • Head style: Flat 100
  • Drive type: Phillips
  • Thread size: #4-40
  • Length: 1/2"
  • Threads per inch: 40
  • Measurement type: Imperial
  • Pack quantity: 5000 per package

Please note: This item is excess stock and is sold non-cancelable, non-refundable, and non-returnable. Please call us with any questions about this item before ordering.

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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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Returning an item

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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)

Natalie H. ★★★★★

I've been needing these #4-40 x 1/2" screws for assembling small electronic enclosures, and the flat 100° head sits flush perfectly. The Phillips drive bites well without stripping, and 5000 pieces in a package means I won't run out anytime soon.

Miles W. ★★★★★

I’ve been using these #4-40 x 1/2" machine screws for mounting small control panels, and the flat 100° head sits flush without snagging anything. The zinc plating on the steel seems sturdy so far—no rust after a couple weeks in a humid garage.

John L. ★★★★★

These #4-40 screws held perfectly when I mounted a circuit board inside a small control panel. The zinc coating looks clean and the Phillips drive didn't strip on me. Exactly what I needed for a reliable, tight fit.