Mutual Screw & Supply

M4-0.7 X 55mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (300 / Pkg.)

M4-0.7 X 55mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class - Main image
$34.3 $49.71 In stock

These M4-0.7 x 55mm 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
  • Drive: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M4-0.7
  • Length: 55mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 12.9
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M4-0.7
  • Length: 55mm
  • Measurement type: Metric
  • Pack quantity: 300 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 (4.8 / 5 · 5 reviews)

Claire A. ★★★★★

Installed these in a robotics fixture and the hex socket drive handled high torque without stripping. The thermal black oxide finish looks clean and seems to resist minor corrosion well.

Mia R. ★★★★★

Needed exactly 300 for a custom jig build, and every single screw threaded in smoothly without any binding. The 12.9 alloy steel feels reassuringly solid, and the black oxide finish looks clean and professional.

Matthew I. ★★★★★

The black oxide finish on these screws gives them a nice uniform look, and the hex socket drive grips the wrench firmly without any wobble. I’ve used a few dozen already in a jig build and not a single one has stripped or snapped.