Pozidriv (PZ) is a further development of the Phillips-Recess (PH) cross-recess profile.

Unlike the Phillips profile, in the Pozidriv system the four flanks of the suitable for the output are not tapered towards the tip, but are milled to be flat and parallel.

Why is the screw profile important?

• Choosing the correct profile
  • improves the fit within the screw head
  • reduces damage to the screw head
  • optimises force transmission
  • reduces slippage or damage

By the way:

• Here is an overview of common screw profiles

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