Mutual Screw & Supply

#4-40 X 5/16" Machine Screws | Flat Head Phillips Drive | Steel Black Zinc (2000 / Pkg.)

#4-40 X 5/16" Machine Screws | Flat Head Phillips Drive | Steel Black Zinc - Main image
$10.69 $16.44 In stock

These #4-40 x 5/16" machine screws are manufactured from Steel with a black zinc finish, featuring a phillips drive and a flat head. They are well suited to fastening metal parts, panels, and enclosures.

  • Material and finish: Steel, Black Zinc finish
  • Drive: Phillips
  • Head style: Flat
  • Thread size: #4-40
  • Length: 5/16"
  • Applications: Fastening metal parts, panels, and enclosures

Specifications

  • Product type: Machine Screws
  • Material: Steel
  • Finish: Black Zinc
  • Head style: Flat
  • Drive type: Phillips
  • Thread size: #4-40
  • Length: 5/16"
  • Threads per inch: 40
  • Measurement type: Imperial
  • Pack quantity: 2000 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 · 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)

Alexander ★★★★★

Finally, a pack of #4-40 screws that actually fits my panel enclosures perfectly. The black zinc coating on these flat heads looks clean and professional, and the Phillips drive bit seated nicely without stripping.

Claire R. ★★★★★

I've been hunting for these exact #4-40 size screws for a metal enclosure project, and the black zinc finish looks sharp and consistent across the whole package. The flat head sits flush against the panel, which is exactly what I needed for a clean exterior. Having 2000 in one bag means I won't be s

Jacob B. ★★★★★

These #4-40 screws fit perfectly into the pre-tapped holes on my project enclosure, and the flat heads sit flush without sticking up. The 2000-count package should last me through several builds.