Mutual Screw & Supply

#4-40 X 1/2" External Tooth SEMS Sem Screws | Pan Head Phillips Drive | 18-8 Stainless Steel (5000 / Pkg.)

#4-40 X 1/2" External Tooth SEMS Sem Screws | Pan Head Phillips Drive | 18-8 - Main image
$114.38 $187.5 In stock

These #4-40 x 1/2" 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: 1/2"
  • 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: 1/2"
  • Threads per inch: 40
  • Measurement type: Imperial
  • Features: External Tooth; SEMS
  • 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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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 (4.4 / 5 · 5 reviews)

Eli ★★★★★

The pan head sits flush against the surface, and the Phillips drive grabs cleanly without stripping. These are exactly what I needed for assembling brackets, and the stainless finish should resist corrosion nicely.

Alexander ★★★★★

Been ordering these for years and the consistency is spot on. The 18-8 stainless has held up through multiple teardowns without a single stripped head, and the external tooth lock washer saves me from carrying separate hardware. Even at 5000 pieces, they arrived clean and ready to feed into the driv

Harper ★★★★☆

Used these for a small electronics assembly project and the 18-8 stainless held up nicely without any corrosion. The 5000-count box is a lot, but it’s nice to have spares for future repairs. Only wish the Phillips head was a tad deeper for a better grip.