Mutual Screw & Supply

M3-0.5 X 40mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Zinc Plated (200 / Pkg.)

M3-0.5 X 40mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded - Main image
$26.48 $38.38 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
  • Head style: Button Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M3-0.5
  • Length: 40mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Button Head
  • Material: Alloy Steel
  • Finish: Zinc Plated
  • Grade: Class 12.9 CR+3
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M3-0.5
  • Length: 40mm
  • Measurement type: Metric
  • Pack quantity: 200 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)

Violet Z. ★★★★★

The hex socket drive grips the Allen key perfectly, no slipping even when I’m torquing them into aluminum jig plates. Zinc plating looks uniform across all 200 pieces, and the 12.9 alloy steel feels seriously tough for the price.

Sophia ★★★★★

I needed a batch of M3x40mm screws for a jig I’m building, and the hex socket drive made installation quick and easy with a standard driver. The black zinc plating looks clean and seems durable so far.

Mia V. ★★★★★

Finally got around to using these for a jig I was building, and the hex socket drive made installation a breeze. The 12.9 alloy steel feels much sturdier than the random screws I usually buy.