Mutual Screw & Supply

M3-0.5 X 12mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (600 / Pkg.)

M3-0.5 X 12mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | - Main image
$24.19 $36.1 In stock

These M3-0.5 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: Flat Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M3-0.5
  • Length: 12mm
  • 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 style: Fully Threaded
  • Thread size: M3-0.5
  • Length: 12mm
  • Measurement type: Metric
  • Pack quantity: 600 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)

William N. ★★★★★

The black oxide finish on these M3 screws gives them a nice, uniform look that's held up well in my jig builds. The 12.9 alloy steel feels seriously tough, and the hex socket drive takes torque without stripping.

Adam N. ★★★★★

I’ve been through a few boxes of these over the years, and the thermal black oxide finish is the first thing I notice—it’s uniform and doesn’t flake off when I’m torquing them down. The hex socket drive grips the Allen key snugly, no stripping on the 12mm length either. Class 12.9 alloy steel holds

Olivia ★★★★★

Used a full pack to fasten aluminum jig plates and every single screw threaded smoothly without binding. The black oxide finish looks clean and seems durable enough for repeated adjustments. For the price, having 600 pieces of this grade is hard to beat for precision work.