Mutual Screw & Supply

#4-40 X 5/16" Machine Screws | Flat 100° Head Phillips Drive | 18/8 Stainless Steel (1000 / Pkg.)

#4-40 X 5/16" Machine Screws | Flat 100° Head Phillips Drive | 18/8 Stainless - Main image
$26.8 $40 In stock

These #4-40 x 5/16" machine screws are manufactured from 18/8 Stainless Steel, 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
  • Drive: Phillips
  • Head style: Flat 100
  • Thread size: #4-40
  • Length: 5/16"
  • Applications: Fastening metal parts, panels, and enclosures

Specifications

  • Product type: Machine Screws
  • Material: 18/8 Stainless Steel
  • Finish: Plain
  • Grade: 18/8
  • Head style: Flat 100
  • Drive type: Phillips
  • Thread size: #4-40
  • Length: 5/16"
  • 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 (5.0 / 5 · 5 reviews)

William V. ★★★★★

Needed exactly 1000 for a batch of enclosures and these came in a sturdy box with the count dead-on. The 18/8 stainless finish is clean and the phillips drive bites well without stripping, even on a few I had to thread into tight spots.

Owen ★★★★★

The flat 100° head sits flush perfectly on thin aluminum panels, and the Phillips drive makes them easy to install without stripping. A full thousand pack means I won't be running out anytime soon for my enclosure builds.

James ★★★★★

I needed a solid supply of #4-40 screws for a panel project and the flat 100° head sits flush without snagging. The 18/8 stainless feels sturdy and should hold up fine in a slightly damp environment.