Mutual Screw & Supply

HOLO-KROME 72024 #4-40 X 5/8" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 72024 #4-40 X 5/8" Socket Cap Screws | Hex Socket Drive | Alloy - Main image
$22.93 $32.29 In stock

These #4-40 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
  • Drive: Socket Drive
  • Thread size: #4-40
  • Length: 5/8"
  • 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: 5/8"
  • Threads per inch: 40
  • Measurement type: Inch
  • Pack quantity: 100 per package
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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 (5.0 / 5 · 5 reviews)

Harper Z. ★★★★★

These held up perfectly when I used them to secure some tooling fixtures on my mill. The black oxide finish seems really durable, and the hex socket made installation a breeze.

Leo ★★★★★

I needed some tiny fasteners for a jig I’m building, and these #4-40 x 5/8" screws fit perfectly with their hex socket drive and a nice snug grip. The black oxide coating doesn’t smudge off like some cheaper screws I’ve used, which is a big plus for precision work.

Ava H. ★★★★★

The thermal black oxide finish on these screws gives them a nice, uniform look, and they fit perfectly into my drill jig without any wobble. I’ve used them for a few tooling setups now, and they hold tight under repeated use.