Mutual Screw & Supply

M3-0.5 X 30mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (300 / Pkg.)

M3-0.5 X 30mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially - Main image
$32.21 $47.37 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
  • Head style: Flat Head
  • 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
  • Head style: Flat Head
  • 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: 300 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 (4.4 / 5 · 5 reviews)

Emma ★★★★★

Perfectly sized threads for my jig build, and the black oxide finish is uniform across all 300 pieces. The partial threading gave me just the right grip depth for my aluminum fixture plates.

Brian ★★★★★

The hex drive on these M3 screws engages perfectly with my Allen key, and the black oxide finish looks clean against the aluminum jig I'm building. They threaded smoothly into pre-tapped holes without any binding, which is a solid win for a 300-pack.

Riley O. ★★★★★

Threaded perfectly into my 3D printer's aluminum bed without any binding—the black oxide finish looks clean and professional. These 12.9 alloy steel screws feel much tougher than the standard ones I've been using.