Mutual Screw & Supply

M24-3 X 320mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (2 / Pkg.)

M24-3 X 320mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class - Main image
$33.8 $56.34 In stock

These M24-3 x 320mm socket cap screws are manufactured from Alloy Steel Thermal Black Oxide, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Thermal Black Oxide
  • Drive: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M24-3
  • Length: 320mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 12.9
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M24-3
  • Length: 320mm
  • Measurement type: Metric
  • Pack quantity: 2 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 (5.0 / 5 · 5 reviews)

Christopher ★★★★★

I needed a heavy-duty bolt for a custom jig, and these M24-3 socket cap screws fit perfectly with their 320mm length. The partially threaded design and Class 12.9 alloy steel make them feel incredibly solid and precise for the job.

Timothy R. ★★★★★

The black oxide finish on these M24 screws is holding up perfectly in my jig setup, no rust after weeks of cutting fluid exposure. They torqued down smoothly with the hex socket drive and the partial threading made alignment a breeze.

Stella ★★★★★

Installed these on a heavy-duty fixture at work, and the 12.9 alloy steel shrugged off the torque without any signs of stress. The black oxide finish gave them a nice, consistent look too.