Mutual Screw & Supply

M4-0.7 X 20mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (600 / Pkg.)

M4-0.7 X 20mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | - Main image
$27.09 $38.16 In stock

These M4-0.7 x 20mm 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: Fully Threaded
  • Thread size: M4-0.7
  • Length: 20mm
  • 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 12.9
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M4-0.7
  • Length: 20mm
  • Measurement type: Metric
  • Pack quantity: 600 per package
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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)

Violet ★★★★★

These are going straight into my tooling fixture build, and the 12.9 grade alloy steel feels properly rigid for the price. Threads ran clean into my M4 taps without any binding or powder residue from the black oxide finish.

Emily M. ★★★★★

The hex socket drive on these grabbed my Allen key perfectly on the first try, no slipping at all. I've already used about a hundred of them on my jig setup and the black oxide finish has held up great so far.

Violet ★★★★★

Finally found M4 bolts that don't strip out under heavy torque—these black oxide ones held up perfectly when I mounted a jig plate. The 12.9 grade steel is noticeably tougher than the standard stuff I was using before.