Mutual Screw & Supply

M5-0.8 X 40mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (400 / Pkg.)

M5-0.8 X 40mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially - Main image
$27.67 $43.24 In stock

These M5-0.8 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: Flat Head
  • Drive: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M5-0.8
  • Length: 40mm
  • 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 10.9
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M5-0.8
  • Length: 40mm
  • 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 (4.4 / 5 · 5 reviews)

Victoria ★★★★★

The hex socket drive made installation really smooth with no stripping, and the 40mm length was perfect for securing my jig frame. These feel solid compared to the cheaper screws I've used before.

Victoria J. ★★★★★

The black oxide finish on these screws gives a nice, uniform matte look that resists fingerprints well. I’m using them on a precision jig and the partial threading allows just the right grip depth without bottoming out.

Michael H. ★★★★★

Finally found some M5 socket cap screws that actually hold up under torque—the Class 10.9 alloy steel is noticeably tougher than the cheaper ones I've used before. The black oxide finish is a nice bonus for resisting light rust in my shop.