Mutual Screw & Supply

M42-4.5 X 260mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide

M42-4.5 X 260mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | - Main image
$119.58 $170.83 In stock

These M42-4.5 x 260mm 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: M42-4.5
  • Length: 260mm
  • 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: M42-4.5
  • Length: 260mm
  • Measurement type: Metric
  • Pack quantity: 1 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)

Amelia ★★★★★

Installing these in a heavy jig assembly was a breeze—the hex socket drive took full torque without any stripping. The 260mm length is perfect for reaching through multiple layers, and the black oxide seems like it’ll hold up well against shop grime.

Leo ★★★★★

The black oxide finish is beautifully uniform and the threads cut cleanly into my jig fixture without any binding. These M42s feel rock-solid for the heavy clamping loads I put on them, and the 12.9 hardness shows in how they hold their shape.

Owen ★★★★★

I needed large-format cap screws for a custom jig setup I’m building, and these M42–4.5 x 260mm ones with the hex socket drive are exactly the right fit for the adjustable clamping arms. The partially threaded shaft gives me good grip depth without the extra material interfering in tight spots. They