Mutual Screw & Supply

HOLO-KROME 61040 3/8-24 X 5/8" Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 61040 3/8-24 X 5/8" Socket Cap Screws | Flat Head Hex Socket Drive | - Main image
$37.47 $55.11 In stock

These 3/8-24 x 5/8" 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: 3/8-24
  • Length: 5/8"
  • 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: 3/8-24
  • Length: 5/8"
  • Threads per inch: 24
  • 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 (4.4 / 5 · 5 reviews)

Hannah ★★★★★

These little screws are perfect for my jig fixtures—the flat head sits flush and the hex drive grabs without stripping. The black oxide finish has held up well after a few weeks of assembly and disassembly. Good value for a hundred pieces.

Kevin ★★★★★

The black oxide finish on these screws is even and consistent across all 100 pieces, which made them look great on my milling fixture. They seated perfectly flush with the countersink, no wobble or chatter during cutting.

Samuel ★★★★★

Finally, a socket cap screw that holds up in my jig builds without stripping. The black oxide finish looks clean and seems to resist oil better than plain steel.