Mutual Screw & Supply

M20-2.5 X 340mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (2 / Pkg.)

M20-2.5 X 340mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | - Main image
$29.19 $44.9 In stock

These M20-2.5 x 340mm 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: M20-2.5
  • Length: 340mm
  • 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: M20-2.5
  • Length: 340mm
  • Measurement type: Metric
  • Pack quantity: 2 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)

Avery E. ★★★★★

The black oxide finish on these feels properly done, not just a cheap paint job, and the hex socket drive seated perfectly on my torque wrench. Class 12.9 is no joke—these M20s handled a heavy press fixture without a hint of flex. Exactly what I needed for a precision assembly rebuild.

Avery ★★★★★

Installed these on a custom jig frame and the partially threaded design made alignment much easier than expected. The black oxide finish seems nicely uniform and durable so far.

Evelyn I. ★★★★★

The hex socket drive on these M20 screws made installation a breeze on my jig setup, and the 12.9 alloy steel feels incredibly sturdy. The thermal black oxide finish looks clean and professional too. Exactly what I needed for heavy-duty tooling work.