Mutual Screw & Supply

M27-3 X 170mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (5 / Pkg.)

M27-3 X 170mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class - Main image
$83.11 $125.93 In stock

These M27-3 x 170mm 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: 170mm
  • 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: 170mm
  • 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 (4.6 / 5 · 5 reviews)

Lucy B. ★★★★★

The 170mm length was exactly what I needed for a custom jig build, and the hex socket drive made torquing them down effortless. These Class 12.9 screws feel incredibly solid and durable for heavy machinery use. Very happy with the consistent threading along the shaft.

Richard ★★★★★

The partially threaded design made installation into my jig frame much easier than I expected. These M27-3 screws have a really solid feel, and the black oxide finish is holding up well against the occasional oil splash.

Owen ★★★★★

I was really impressed by the black oxide finish on these screws—it looks clean and professional. They fit perfectly into my jig setup and show no signs of flex under heavy torque.