Mutual Screw & Supply

#4-40 X 5/16" Internal Tooth SEMS Sem Screws | Pan Head Phillips Drive | 18-8 Stainless Steel (1000 / Pkg.)

#4-40 X 5/16" Internal Tooth SEMS Sem Screws | Pan Head Phillips Drive | 18-8 - Main image
$28.6 $44 In stock

These #4-40 x 5/16" sem screws are manufactured from 18-8 Stainless Steel, featuring a phillips drive and a pan head. They are well suited to general fastening and assembly work.

  • Material and finish: 18-8 Stainless Steel
  • Drive: Phillips
  • Head style: Pan
  • Thread size: #4-40
  • Length: 5/16"
  • Applications: General fastening and assembly work

Specifications

  • Product type: Sem Screws
  • Material: 18-8 Stainless Steel
  • Finish: Plain
  • Grade: 18/8
  • Head style: Pan
  • Drive type: Phillips
  • Thread size: #4-40
  • Length: 5/16"
  • Threads per inch: 40
  • Measurement type: Imperial
  • Features: Internal Tooth; SEMS
  • 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: 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 (4.6 / 5 · 5 reviews)

Harper T. ★★★★★

Got a full box of these for a small electronics project. The internal tooth lock washer being pre-assembled saved me a ton of time compared to separate parts. They’re exactly the right size for mounting small circuit boards.

Thomas T. ★★★★★

Needed a batch of #4-40 screws for a small electronics project, and these pan heads with the Phillips drive seated perfectly. The 18-8 stainless steel feels sturdy, and having a thousand in one package saved me from running out mid-assembly.

Natalie ★★★★★

The internal tooth lock washer on these #4-40 screws saved me time not having to add separate washers for a panel assembly — and the 18-8 stainless feels sturdy.