Mutual Screw & Supply

M42-4.5 X 280mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide

M42-4.5 X 280mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | - Main image
$132.92 $177.22 In stock

These M42-4.5 x 280mm 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: 280mm
  • 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: 280mm
  • 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)

Steven ★★★★★

The thermal black oxide finish gives these a nice, uniform look, and the partial threading makes alignment in my fixture a lot less fiddly. They’re hefty at 280mm, but the hex socket drive feels precise, and the 12.9 alloy steel gives me confidence in the clamping load.

Scarlett ★★★★★

Installed these on a heavy-duty jig I’m welding up, and the 12.9 alloy steel holds torque without stripping. The thermal black oxide finish is a nice touch, resists oil smudges while I’m working under the press.

Samuel ★★★★★

Put these on a milling fixture I’m building, and the 12.9 alloy steel feels rock-solid. The black oxide finish is a nice touch, no oil slick on my hands. They seated perfectly with a hex key, no wobble.