Mutual Screw & Supply

#4-40 X 5/16" Machine Screws | Pan Head Slotted Drive | 18/8 Stainless Steel (1600 / Pkg.)

#4-40 X 5/16" Machine Screws | Pan Head Slotted Drive | 18/8 Stainless Steel - Main image
$14.45 $19.8 In stock

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

  • Material and finish: 18/8 Stainless Steel
  • Drive: Slotted
  • Head style: Pan
  • 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: Pan
  • Drive type: Slotted
  • 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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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)

Scarlett ★★★★★

Finally, a bulk pack of #4-40 screws that are actually all the same length—no frustrating random shorties mixed in. The slotted pan head really bites down nicely into the aluminum enclosure I was mounting, and stainless steel means zero rust worries.

Chloe L. ★★★★★

I needed a large batch of small screws for several enclosures, and these pan heads seated perfectly without stripping. The slotted drive worked fine with a standard screwdriver, and the stainless finish gives me confidence they won't rust outdoors.

Matthew J. ★★★★★

The 18/8 stainless steel finish on these screws is noticeably smooth and consistent, which makes them a perfect match for the metal enclosures I'm working on. The pan head sits flush without catching on anything, and having 1600 in one box means I won't run out mid-project.