Mutual Screw & Supply

M2-0.4 X 20mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (400 / Pkg.)

M2-0.4 X 20mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class - Main image
$26.33 $41.14 In stock

These M2-0.4 x 20mm 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: M2-0.4
  • Length: 20mm
  • 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: M2-0.4
  • Length: 20mm
  • Measurement type: Metric
  • Pack quantity: 400 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)

Grace Q. ★★★★★

The black oxide finish on these M2 screws looks professional and the hex drive seated perfectly on my jig fixture. Threads cut cleanly into 6061 aluminum without any binding. A solid choice for precision work.

Sofia O. ★★★★★

Was pleasantly surprised by the consistency of the black oxide finish across all 400 screws—no bare spots or uneven coloring. Used them for a precision assembly fixture and the Class 12.9 hardness made tightening to spec feel solid without any stripping.

Daniel E. ★★★★★

Putting together a jig for small electronics and these M2 screws worked perfectly. The black oxide finish looks clean and seems more durable than the plain steel ones I've used before. Thread engagement was smooth all the way down on every single one from the pack.