Mutual Screw & Supply

M20-2.5 X 155mm Socket Cap Screws | Flat Head Hex Socket Drive | Class 12.9 Alloy Steel Thermal Black Oxide (27 / Pkg.)

M20-2.5 X 155mm Socket Cap Screws | Flat Head Hex Socket Drive | Class 12.9 - Main image
$29.95 $49.92 In stock

These M20-2.5 x 155mm 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: Flat Head
  • Drive: Hex Socket Drive
  • Thread size: M20-2.5
  • Length: 155mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Flat Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 12.9
  • Drive type: Hex Socket Drive
  • Thread size: M20-2.5
  • Length: 155mm
  • Measurement type: Metric
  • Pack quantity: 27 per package
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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)

Christopher X. ★★★★★

I needed something robust for my jig setup, and these black oxide screws show no signs of stripping even under heavy torque. The threading is precise, and all 27 pieces in the pack had a consistent finish without any burrs.

Steven ★★★★★

The hex socket drive made tightening these into my machinery frame much easier than standard hex bolts. The black oxide finish looks clean and professional on my assembly jig.

Elizabeth ★★★★★

Installed these in a custom jig I'm building and the hex drive held up perfectly under torque. The black oxide coating seems even and durable so far.