Mutual Screw & Supply

HOLO-KROME 65030 5/16-24 X 5/8" Socket Cap Screws | Button Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 65030 5/16-24 X 5/8" Socket Cap Screws | Button Head Hex Socket - Main image
$23.63 $39.39 In stock

These 5/16-24 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: Button Head
  • Drive: Socket Drive
  • Thread size: 5/16-24
  • Length: 5/8"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Button Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Socket Drive
  • Thread size: 5/16-24
  • Length: 5/8"
  • Threads per inch: 24
  • Measurement type: Inch
  • Pack quantity: 100 per package
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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 (4.6 / 5 · 5 reviews)

Riley ★★★★★

The thermal black oxide finish on these screws looks great and seems to resist wear—installed a batch into a tooling fixture and they seated perfectly with a hex key.

Natalie L. ★★★★★

Used these for a precision assembly jig and the socket drive seated perfectly, no stripping even with repeated torque. The thermal black oxide coating hasn’t shown a single speck of rust after a week in a humid shop, which is more than I can say for cheaper hardware. Hundred in the pack means I’ve g

Jacob E. ★★★★★

The black oxide finish on these screws is holding up great in my tooling setup, no rust after a week of use. Fit perfectly into my precision assemblies with tight tolerances. At 100 count for the price, I've got plenty for future projects.