Mutual Screw & Supply

M20-2.5 X 140mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 8.8 Alloy Steel Thermal Black Oxide (10 / Pkg.)

M20-2.5 X 140mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | - Main image
$40.13 $53.51 In stock

These M20-2.5 x 140mm 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: 140mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 8.8
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M20-2.5
  • Length: 140mm
  • Measurement type: Metric
  • Pack quantity: 10 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)

Brian X. ★★★★★

Finally found the right thread length for my tooling fixtures. The hex socket drive seated perfectly with a standard Allen key, and the partially threaded design gives me just enough grip without bottoming out.

Claire A. ★★★★★

The black oxide finish on these M20 screws is what sold me—they look clean and professional in my tooling setup. Threads cut smoothly when I torqued them in, and the 8.8 alloy steel feels plenty stout for the precision assembly work I've been doing.

Chloe P. ★★★★★

Used these for a custom jig build and the partially threaded shank made alignment so much easier than fully threaded bolts. Held up perfectly under heavy clamping pressure without any stripping.