Mutual Screw & Supply

M3-0.5 X 40mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Zinc Plated (300 / Pkg.)

M3-0.5 X 40mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class - Main image
$34.1 $48.72 In stock

These M3-0.5 x 40mm 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: 40mm
  • 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: 40mm
  • Measurement type: Metric
  • Pack quantity: 300 per package
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Standard Shipping · United States: $0.00

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)

Timothy ★★★★★

The hex socket drive grips perfectly with my Allen key, and the zinc plating looks clean and uniform across all 300 pieces. Partially threaded was exactly what I needed for clamping down jigs without stripping.

Emily ★★★★★

Pulled one out to test fit in a jig fixture, and the 12.9 alloy steel feels tougher than the usual 8.8 screws I've used before. The zinc plating is even and should hold up fine in my shop.

Adam ★★★★★

I needed exactly 300 pieces for a batch of jigs, and these class 12.9 screws are holding up beautifully under tight torque. The zinc plating looks consistent across the whole pack, no burrs on the threads.