Fasteners ScrewCalculator

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Fasteners ScrewCalculator

Menu location
Fasteners → Screw calculator
Default shortcut
Introduced in version
See also


The Fasteners ScrewCalculator command shows a calculator to determine the tap hole size of screws.

The Screw hole calculator dialog box


  1. There are several ways to invoke the command:
    • Press the Screw calculator button.
    • Select the Fasteners → Screw calculator option from the menu.
  2. The Screw hole calculator dialog box opens.
  3. Specify the Fastener type and the Screw diameter.
  4. The Suggested hole diameter is displayed.
  5. The dialog box is modeless, meaning it can stay open while you continue working in FreeCAD.
  6. Press the Close button (provided by the OS) to close the dialog box.