Mutual Screw & Supply

M42-4.5 X 240mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide

M42-4.5 X 240mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | - Main image
$107.32 $151.15 In stock

These M42-4.5 x 240mm 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: 240mm
  • 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: 240mm
  • 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)

Edward V. ★★★★★

Installed these in a jig for a production run and the 12.9 alloy steel handled the torque without any visible wear. The black oxide finish seems durable and hasn't chipped at all.

Grace ★★★★★

These bolts handled the heavy clamping force on my jig without any issue, the hex socket drive made tightening them in a tight spot far easier than a standard hex head would have. For the size, the 240mm length was precisely as ordered and the threads were clean right out of the box.

Henry ★★★★★

The thermal black oxide finish on these bolts handled the cutting fluid on my mill without any surface rust, which was my main concern. They threaded smoothly into my fixture plate and the hex socket drive gave me plenty of torque.