Mutual Screw & Supply

#4-40 X 3/8" Socket Cap Screws | Button Head Hex Socket Drive | 410 Stainless Steel (100 / Pkg.)

#4-40 X 3/8" Socket Cap Screws | Button Head Hex Socket Drive | 410 Stainless - Main image
$32.91 $53.95 In stock

These #4-40 x 3/8" socket cap screws are manufactured from 410 Stainless Steel, featuring a hex socket drive and a button head. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: 410 Stainless Steel
  • Drive: Hex Socket
  • Head style: Button
  • Thread size: #4-40
  • Length: 3/8"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: 410 Stainless Steel
  • Grade: 410
  • Head style: Button
  • Drive type: Hex Socket
  • Thread size: #4-40
  • Length: 3/8"
  • 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 · 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)

Miles ★★★★★

The hex socket drive made these little #4-40 screws easy to tighten into a tight jig without stripping. A full hundred in the pack is plenty for my precision assembly projects.

James ★★★★★

I needed a few tiny fasteners for a precision tooling project and these button heads fit perfectly with a 3/32 hex driver. The 410 stainless finish is clean and uniform across the whole pack of 100.

Riley V. ★★★★★

Finally found small screws that don't strip out on my jig fixture—the 410 stainless steel feels much tougher than the cheap zinc ones I used before. The button head sits flush and the hex drive bites instantly without slipping.