Mutual Screw & Supply

M27-3 X 400mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide

M27-3 X 400mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class - Main image
$56 $90.33 In stock

These M27-3 x 400mm 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: 400mm
  • 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: 400mm
  • Measurement type: Metric
  • Pack quantity: 1 per package
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Standard Shipping · United States: $0.00

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)

Leo W. ★★★★★

Used them on a custom jig build where I needed real holding force, and the 12.9 alloy steel didn't flex a millimeter under load. The partially threaded length gave me just enough grip without bottoming out, and the hex socket drive made torquing them down with a long allen key way easier than I expe

Emily O. ★★★★★

The black oxide finish on these screws feels incredibly durable, and the hex socket drive made installation much easier than I expected with a standard wrench.

Thomas Y. ★★★★★

Had to torque these down for a press fixture, and the hex socket drive engaged perfectly without stripping the head. The black oxide finish looks clean and matches the tooling setup nicely.