Mutual Screw & Supply

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

#4-40 X 5/16" Machine Screws | Round Head Phillips Drive | 18/8 Stainless Steel - Main image
$11.88 $19.8 In stock

These #4-40 x 5/16" machine screws are manufactured from 18/8 Stainless Steel, featuring a phillips drive and a round head. They are well suited to fastening metal parts, panels, and enclosures.

  • Material and finish: 18/8 Stainless Steel
  • Drive: Phillips
  • Head style: Round
  • 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: Round
  • Drive type: Phillips
  • Thread size: #4-40
  • Length: 5/16"
  • Threads per inch: 40
  • Measurement type: Imperial
  • Pack quantity: 100 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 (4.8 / 5 · 5 reviews)

Penelope N. ★★★★★

I was pleasantly surprised by the quality of these tiny #4-40 screws—the 18/8 stainless steel gives them a solid feel, and the Phillips drive made installation on a metal bracket really smooth.

Violet M. ★★★★★

Used these to mount some small circuit boards inside an aluminum project box, and the 18/8 stainless steel feels solid and corrosion-resistant. The phillips drive seated cleanly without stripping, and the 1000-count bulk bag means I won't run out anytime soon. Exactly the right size for tight enclos

Adam ★★★★★

Finally found a bulk pack of #4-40 screws that doesn't strip out halfway through a project. The 18/8 stainless steel feels solid, and the round head sits flush against the panel without wobbling. Perfect for mounting those small electronic enclosures.