Mutual Screw & Supply

#4-40 X 3/16" Socket Cap Screws | Button Head Hex Socket Drive | 18/8 Stainless Steel Black Oxide (2000 / Pkg.)

#4-40 X 3/16" Socket Cap Screws | Button Head Hex Socket Drive | 18/8 Stainless - Main image
$32.86 $53 In stock

These #4-40 x 3/16" socket cap screws are manufactured from 18/8 Stainless Steel with a black oxide finish, featuring a hex socket drive and a button head. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: 18/8 Stainless Steel, Black Oxide finish
  • Drive: Hex Socket
  • Head style: Button
  • Thread size: #4-40
  • Length: 3/16"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: 18/8 Stainless Steel
  • Finish: Black Oxide
  • Grade: 18/8
  • Head style: Button
  • Drive type: Hex Socket
  • Thread size: #4-40
  • Length: 3/16"
  • Threads per inch: 40
  • Measurement type: Imperial
  • Pack quantity: 2000 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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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)

Timothy C. ★★★★★

I needed a bulk pack of small socket cap screws for a jig I was building, and these #4-40 x 3/16" ones with the hex drive made installation a breeze. The black oxide coating looks great against the aluminum, and the 2000-count package will last me years.

Violet ★★★★★

The black oxide finish on these screws looks sharp and held up well during assembly, no chipping or flaking as I torqued them down. The hex socket drive grabbed cleanly every time, and having 2000 in one package means I'm set for years of projects.

Jacob ★★★★★

Needed to replace some fasteners on a jig at work and these black oxide screws matched the aesthetic perfectly. The hex socket drive made installation quick without any cam-out issues.