Mutual Screw & Supply

M8-1.25 X 40mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (200 / Pkg.)

M8-1.25 X 40mm Socket Cap Screws | Button Head Hex Socket Drive | Fully - Main image
$32.76 $46.8 In stock

These M8-1.25 x 40mm 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: Button Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M8-1.25
  • Length: 40mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Button Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 10.9
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M8-1.25
  • Length: 40mm
  • Measurement type: Metric
  • Pack quantity: 200 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 (4.8 / 5 · 5 reviews)

Jason S. ★★★★★

The hex socket drive on these M8 screws grips perfectly for tightening into tight spaces on my tooling fixtures. The black oxide finish seems durable and hasn't chipped during assembly.

Alexander ★★★★★

I’ve used these in a few jigs and they hold up far better than the 12.9s I was buying from the hardware store. The hex drive seats cleanly without stripping, and having 200 in the pack means I don’t have to ration them for the next project.

Emily ★★★★★

The black oxide finish on these M8 screws looks professional and resisted scratching during assembly. They seated perfectly in the jig's threaded holes with no binding. Exactly what I needed for heavy-duty tooling fixtures.