Mutual Screw & Supply

M3-0.5 X 30mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Zinc Plated (400 / Pkg.)

M3-0.5 X 30mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class - Main image
$24.06 $38.8 In stock

These M3-0.5 x 30mm socket cap screws are manufactured from Alloy Steel Zinc Plated, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Zinc Plated
  • Drive: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M3-0.5
  • Length: 30mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Zinc Plated
  • Grade: Class 12.9 CR+3
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M3-0.5
  • Length: 30mm
  • Measurement type: Metric
  • Pack quantity: 400 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)

Isabella ★★★★★

Needed exactly 400 for a batch of jig fixtures, and the 12.9 alloy steel gives me confidence they won't strip under load. The zinc plating looks uniform and clean, which is a nice bonus for a functional fastener.

Sebastian Z. ★★★★★

The hex socket drive on these M3 screws is machined so cleanly that my Allen wrench seats perfectly every time, no wobble or stripped corners even after repeated tightening. I’ve got them holding a jig together under constant vibration and they’ve stayed rock solid for weeks.

Emma ★★★★★

Used a full package of these on a custom jig I’m building, and the hex socket drive bit into the driver perfectly without any stripping. The 12.9 alloy steel feels noticeably tougher than the cheaper screws I’ve used before, and the zinc coating has held up well even with some heavy clamping force.