Mutual Screw & Supply

HOLO-KROME 60006 #4-40 X 1/2" Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 60006 #4-40 X 1/2" Socket Cap Screws | Flat Head Hex Socket Drive | - Main image
$16.34 $26.36 In stock

These #4-40 x 1/2" 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
  • Head style: Flat Head
  • Drive: Socket Drive
  • Thread size: #4-40
  • Length: 1/2"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Flat Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Socket Drive
  • Thread size: #4-40
  • Length: 1/2"
  • Threads per inch: 40
  • Measurement type: Inch
  • Pack quantity: 100 per package
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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 (4.0 / 5 · 5 reviews)

Sofia ★★★★★

Was a perfect fit for a vintage radio chassis I'm restoring. The black oxide finish matches the original hardware, and the flat head sits flush without any issue.

Sebastian ★★★★★

Just finished rebuilding a small jig and these #4-40 x 1/2" flat heads fit perfectly into the countersunk holes. The black oxide finish is consistent across all 100 screws, no burrs or rough edges to clean up.

Joseph Z. ★★★★☆

The black oxide finish on these screws seems tougher than I expected, and they seated nicely in my jig without any stripping. Only gave four stars because one screw in the pack had a slightly uneven slot, but overall they did the job fine for a precision tool rebuild.