Mutual Screw & Supply

M42-4.5 X 100mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Thermal Black Oxide

M42-4.5 X 100mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class - Main image
$46.9 $73.28 In stock

These M42-4.5 x 100mm 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: Fully Threaded
  • Thread size: M42-4.5
  • Length: 100mm
  • 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: Fully Threaded
  • Thread size: M42-4.5
  • Length: 100mm
  • 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 (4.6 / 5 · 5 reviews)

Jason ★★★★★

Needed some serious fasteners for a custom jig build, and these 12.9 grade cap screws haven't budged under heavy load. The hex socket drive engages cleanly, making tightening a breeze even in tight spots.

Abigail V. ★★★★★

The black oxide finish looks properly done and even, and the 12.9 grade gives me confidence these will hold up in my jig setup. Threads are clean all the way down the 100mm length, no burs or binding when I drove them in.

Ellie ★★★★★

Had to replace some worn bolts on a heavy press jig, and these 12.9 alloy screws handled the torque like a dream. The black oxide finish seems durable and the fully threaded shaft gave me plenty of grip.