Mutual Screw & Supply

M8-1.25 X 12mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (400 / Pkg.)

M8-1.25 X 12mm Socket Cap Screws | Button Head Hex Socket Drive | Fully - Main image
$36.09 $54.68 In stock

These M8-1.25 x 12mm 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: 12mm
  • 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 12.9
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M8-1.25
  • Length: 12mm
  • Measurement type: Metric
  • Pack quantity: 400 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 (4.6 / 5 · 5 reviews)

Edward O. ★★★★★

Finally found black oxide bolts that don't chip just from the hex key. These M8s seated perfectly into my fixture plate and hold torque without stripping. Exactly what I needed for high-stress tooling.

Henry R. ★★★★★

Got these for a jig I’m building and the black oxide finish looks properly machined, plus the 12.9 alloy hardness means I don’t worry about stripping the hex on the 12mm length. All 400 came in a neat box, counted them all, no duds.

Sophia ★★★★★

The hex socket drive made installation a breeze with my Allen key, and the black oxide finish looks clean on my jig setup. These 12.9 alloy steel screws feel incredibly solid for the price, perfect for tooling projects where you need reliable clamping force.