Mutual Screw & Supply

#4-40 X 3/8" Machine Screws | Flat Head Slotted Drive | Steel Cadmium (5000 / Pkg.)

#4-40 X 3/8" Machine Screws | Flat Head Slotted Drive | Steel Cadmium (5000 / - Main image
$38.32 $61.8 In stock

These #4-40 x 3/8" machine screws are manufactured from Steel with a cadmium finish, featuring a slotted drive and a flat head. They are well suited to fastening metal parts, panels, and enclosures.

  • Material and finish: Steel, Cadmium finish
  • Drive: Slotted
  • Head style: Flat
  • Thread size: #4-40
  • Length: 3/8"
  • Applications: Fastening metal parts, panels, and enclosures

Specifications

  • Product type: Machine Screws
  • Material: Steel
  • Finish: Cadmium
  • Head style: Flat
  • Drive type: Slotted
  • Thread size: #4-40
  • Length: 3/8"
  • 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 (4.6 / 5 · 5 reviews)

Grace C. ★★★★★

Packaging was solid and every single screw in the batch is clean with consistent threading. The cadmium finish should hold up well on the metal enclosures I’m working on.

Charlotte ★★★★★

Just finished a small electronics project and these #4-40 screws fit perfectly into the pre-tapped holes. The cadmium finish has a nice, uniform look and I didn't run into any stripped heads during assembly.

Stella ★★★★★

Packed 5,000 of these little guys and every single one threads cleanly into my #4-40 taps without a single dud. The slotted flat heads sit flush in my enclosure panels, and the cadmium finish looks consistent across the batch. For bulk hardware, these are exactly what I needed.