Mutual Screw & Supply

M6-1 X 40mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (400 / Pkg.)

M6-1 X 40mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded | - Main image
$32.1 $47.2 In stock

These M6-1 x 40mm 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: Button Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M6-1
  • Length: 40mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Button Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 10.9
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M6-1
  • Length: 40mm
  • Measurement type: Metric
  • Pack quantity: 400 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)

Ava ★★★★★

The black oxide finish on these M6-1 x 40mm screws gives them a nice, non-reflective look that handles oil and grime without showing fingerprints. I’ve been using them to lock down a few precision fixtures and the hex socket drive hasn’t stripped once, even after torquing them repeatedly. They’re a

Brian A. ★★★★★

These screws bit perfectly into my jig's threaded holes without any binding. The black oxide finish seems durable and the hex drive held the Allen key firmly.

Brian ★★★★★

Was pleasantly surprised by how cleanly these threads cut into a steel jig I'm building—the hex drive seated perfectly without any wobble. For under 50 cents a bolt, the Class 10.9 strength gives me real confidence in high-torque applications.