Mutual Screw & Supply

M2-0.4 X 3mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (400 / Pkg.)

M2-0.4 X 3mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded - Main image
$26.64 $35.52 In stock

These M2-0.4 x 3mm 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
  • Head style: Button Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M2-0.4
  • Length: 3mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Button Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 10.9
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M2-0.4
  • Length: 3mm
  • Measurement type: Metric
  • Pack quantity: 400 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)

Jason ★★★★★

Just got these for some jigs I’m building, and the black oxide finish makes them look sharp while the 10.9 alloy steel feels solidly heat-treated. They thread in cleanly without binding, and the 400 count means I won’t run out mid-project.

Eva Q. ★★★★★

Perfect fit for the 3D printer’s hotend fan shroud I’m building — the hex socket drive made installation easy even in tight spots. Black oxide finish looks clean and resists rust so far.

Joseph ★★★★★

I needed tiny screws for a precision jig and these M2x3mm button heads seated perfectly with a hex driver. The Class 10.9 alloy steel feels reassuringly tough for such small fasteners.