Mutual Screw & Supply

M20-2.5 X 230mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (5 / Pkg.)

M20-2.5 X 230mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | - Main image
$25.08 $39.81 In stock

These M20-2.5 x 230mm 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: 230mm
  • 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: 230mm
  • Measurement type: Metric
  • Pack quantity: 5 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)

Penelope J. ★★★★★

Had to swap out a stripped bolt on a heavy-duty press fixture, and these M20s handled the torque without flexing. The 12.9 alloy steel with black oxide looks solid and should resist rust well in the shop.

Miles ★★★★★

The black oxide finish looks sharp and the hex drive seated perfectly with my torque wrench—these M20s feel rock solid for jig building. Threads cut clean going into tapped holes, no binding at all.

Claire F. ★★★★★

The partially threaded design on these 230mm screws made installing into my machine jig much faster than using fully threaded ones, and the black oxide finish looks clean. They snugged up tight with a hex key without any stripping or wobble—solid hardware for precision work.