Mutual Screw & Supply

#4-40 X 1/4" Machine Screws | Flat 100° Head Phillips Drive | 18/8 Stainless Steel Black Oxide (2000 / Pkg.)

#4-40 X 1/4" Machine Screws | Flat 100° Head Phillips Drive | 18/8 Stainless - Main image
$18.45 $24.6 In stock

These #4-40 x 1/4" machine screws are manufactured from 18/8 Stainless Steel with a black oxide finish, featuring a phillips drive and a flat 100 head. They are well suited to fastening metal parts, panels, and enclosures.

  • Material and finish: 18/8 Stainless Steel, Black Oxide finish
  • Drive: Phillips
  • Head style: Flat 100
  • Thread size: #4-40
  • Length: 1/4"
  • Applications: Fastening metal parts, panels, and enclosures

Specifications

  • Product type: Machine Screws
  • Material: 18/8 Stainless Steel
  • Finish: Black Oxide
  • Grade: 18/8
  • Head style: Flat 100
  • Drive type: Phillips
  • Thread size: #4-40
  • Length: 1/4"
  • 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: 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 (5.0 / 5 · 5 reviews)

George ★★★★★

The black oxide coating on these #4-40 screws holds up great against scuffs and doesn't just wear off after a few turns like cheaper ones I've used. Perfect for my metal project where I needed a consistent, clean look across 2000 pieces.

Samuel D. ★★★★★

I needed a large batch for a metal enclosure project, and these flat 100° heads sit perfectly flush without any snagging. The Phillips drive engages nicely, and the black oxide finish seems durable so far.

Adam ★★★★★

The black oxide finish on these #4-40 screws gives them a nice matte look and seems like it'll resist corrosion well, especially for the price. I'm using them to secure small metal brackets on a robotics project and they fit perfectly. The 100° flat head sits flush without any issues.