Mutual Screw & Supply

HOLO-KROME 73090 5/16-24 X 1-3/4" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 73090 5/16-24 X 1-3/4" Socket Cap Screws | Hex Socket Drive | Alloy - Main image
$34.29 $52.76 In stock

These 5/16-24 x 1-3/4" 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: 5/16-24
  • Length: 1-3/4"
  • 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: 5/16-24
  • Length: 1-3/4"
  • 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 (5.0 / 5 · 5 reviews)

David J. ★★★★★

Had to replace some worn bolts on a milling machine fixture, and these fit the socket perfectly without any binding. The black oxide finish looks solid and should resist rust way better than the old zinc-plated ones I had before.

Isabella Z. ★★★★★

Used these on a new jig for a production run and the black oxide finish held up perfectly against coolant splashes. The hex drive seated cleanly with no stripping, and the alloy steel threads cut smoothly into mild steel.

Stella ★★★★★

Got these for a fixture rebuild and the black oxide finish looks great and seems durable. The hex drive seated cleanly in the countersink without any stripping, which I've had trouble with on cheaper cap screws. Perfect for precision assemblies.