Mutual Screw & Supply

M4-0.7 X 40mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (400 / Pkg.)

M4-0.7 X 40mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded - Main image
$27.03 $36.04 In stock

These M4-0.7 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: M4-0.7
  • 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: M4-0.7
  • 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 (5.0 / 5 · 5 reviews)

Nicholas X. ★★★★★

The threads on these M4 screws are crisp and consistent—every one of the 400 seated perfectly in my aluminum jig without any binding. The black oxide finish feels durable and hasn't shown any wear after tightening several dozen into steel components. Exactly what I needed for precision assembly work

Joshua T. ★★★★★

The hex socket drive bites cleanly with a standard Allen key, and the black oxide finish looks sharp on my tooling fixtures. Threads ran smooth through tapped holes without any binding, and all 400 came out of the box free of oil residue.

Hannah U. ★★★★★

Installed a batch on a custom jig this morning and the hex sockets grabbed perfectly without stripping. The 40mm length was exactly what I needed for that through-hole application, and they threaded smoothly into tapped steel.