Mutual Screw & Supply

M27-3 X 190mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (5 / Pkg.)

M27-3 X 190mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class - Main image
$101.85 $137.63 In stock

These M27-3 x 190mm 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: M27-3
  • Length: 190mm
  • 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: M27-3
  • Length: 190mm
  • Measurement type: Metric
  • Pack quantity: 5 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)

Elizabeth ★★★★★

The black oxide finish is exactly what I wanted for the shop—these M27s slid into place without any galling, and the hex socket drive held the wrench firm even at full torque. The partial threading makes them perfect for clamping down on thick flanges without the threads chewing up the work surface.

Eli K. ★★★★★

I needed fasteners for a heavy-duty jig, and the Class 12.9 alloy steel on these feels incredibly solid under torque. The hex socket drive seated perfectly with my driver, no slippage at all. Definitely saved me from stripping a cheaper bolt.

James ★★★★★

The partially threaded design made these M27 screws a perfect fit for my jig setup, and the black oxide finish seems ready for workshop wear. Tightened them into a heavy tooling frame and they held firm with zero stripping.