Mutual Screw & Supply

M3-0.5 X 16mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (600 / Pkg.)

M3-0.5 X 16mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class - Main image
$24.04 $36.98 In stock

These M3-0.5 x 16mm 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: Fully Threaded
  • Thread size: M3-0.5
  • Length: 16mm
  • 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: Fully Threaded
  • Thread size: M3-0.5
  • Length: 16mm
  • 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 (4.8 / 5 · 5 reviews)

Lily Z. ★★★★★

I've been using these screws for mounting brackets on a custom jig and the hex socket drive makes them much easier to install in tight spots than a standard Phillips head. The 12.9 alloy steel feels noticeably tougher than the 10.9 grade I used before.

Michael M. ★★★★★

The black oxide finish on these M3 screws really resists wear during repeated adjustments on my machining fixtures. Each one threaded smoothly into tapped aluminum without any binding, and the hex socket drove perfectly with a standard driver. Exactly what I needed for precision builds.

Christopher ★★★★★

Pulled these out for a precision jig setup and the hex socket drive engages perfectly without stripping. They fit tightly into tapped holes—the 12.9 grade really feels stronger than the standard ones I've used before.