Mutual Screw & Supply

HOLO-KROME 86150 #4-40 X 3/16" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 86150 #4-40 X 3/16" Socket Cap Screws | Hex Socket Drive | Alloy - Main image
$21.3 $30.87 In stock

These #4-40 x 3/16" socket cap screws are manufactured from Alloy Steel Thermal Black Oxide, featuring a socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Thermal Black Oxide
  • Drive: Socket Drive
  • Thread size: #4-40
  • Length: 3/16"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Socket Drive
  • Thread size: #4-40
  • Length: 3/16"
  • Threads per inch: 40
  • Measurement type: Inch
  • Pack quantity: 100 per package
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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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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)

Ava O. ★★★★★

The hex socket drive on these little screws fit my driver perfectly—no cam-out issues even on a tight jig. They're exactly the right size for small machinery repairs I've been tackling.

Riley K. ★★★★★

I needed a handful of these for a small fixture repair, and the hex socket drive made installation effortless in a tight spot. The black oxide finish seems tough and even across all 100 screws.

Christopher I. ★★★★★

The threads cut cleanly and seated perfectly in my jig fixture without any binding, which is exactly what I needed for a tight assembly. The black oxide finish looks uniform across all 100 pieces, so these should hold up well against minor moisture in my shop.