Mutual Screw & Supply

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

#4-40 X 5/16" Machine Screws | Pan Head Phillips Drive | Steel Black Oxide - Main image
$10.97 $17.98 In stock

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

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

Specifications

  • Product type: Machine Screws
  • Material: Steel
  • Finish: Black Oxide
  • Head style: Pan
  • Drive type: Phillips
  • Thread size: #4-40
  • Length: 5/16"
  • Threads per inch: 40
  • Measurement type: Imperial
  • Pack quantity: 1000 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 (4.6 / 5 · 5 reviews)

William ★★★★★

The black oxide finish on these screws looks clean and professional on my project panels, and the Phillips drive grabs the bit without stripping. A full 2,000-count package means I have extras for future builds, which is convenient.

Elizabeth ★★★★★

Used these to fasten a small metal enclosure panel and they threaded in cleanly with no stripping, even with the black oxide finish adding a bit of grip. The 2000-count box is a solid value for anyone who works on electronics regularly. Pan head sits flush enough for the job.

Richard P. ★★★★★

Bought these to mount a small metal panel and the black oxide finish is exactly as described—clean, uniform, and no rough edges on the threads. They seated perfectly with a phillips driver and the pan head sits flush without stripping. For a 2,000-pack this price is a steal, and I’ve already used ha