Mutual Screw & Supply

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

M3-0.5 X 30mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class - Main image
$23.63 $35.8 In stock

These M3-0.5 x 30mm 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: 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: Thermal Black Oxide
  • Grade: Class 12.9
  • 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 (5.0 / 5 · 5 reviews)

John R. ★★★★★

I was pleasantly surprised by the machining precision on these M3 socket screws—the hex socket drive engages perfectly every time. The black oxide finish seems durable, and the 30mm length worked great for securing a jig on my CNC router table.

Zoe E. ★★★★★

Finally got my tooling project dialed in with these M3 socket cap screws. The hex socket drive grabbed perfectly with my standard driver, and the 30mm length gave me just the right bite into the metal jig plate.

Richard ★★★★★

Packed these into a jig I’m building, and the 12.9 alloy steel feels noticeably tougher than the standard 10.9 grade I used before. The thermal black oxide finish gives them a nice grip in the hex driver without any slipping. Exactly what I needed for a tight M3 thread.