Rivet Nut Size Calculator

How to Use the Rivet Nut Size Calculator

  1. Enter the hole diameter. Type the drilled hole size in the Hole Diameter field.
  2. Enter material thickness. Type the sheet/panel thickness in the Material Thickness field.
  3. Select a thread size. Choose from Metric (M3–M12) or Imperial (6-32 to 5/8-11). The calculator updates units automatically.
  4. Review the live preview. You’ll see:
    • Hole Range, Grip Range, Torque Range, Body Type
    • Your Thickness with grip range
  5. Click “Calculate Size”. The tool confirms the best match or tells you what to adjust.
  6. (Optional) Download PDF. When a valid match is found, use Download PDF Specs to save a printable spec sheet.
Units: Selecting an imperial thread (e.g., 1/4-20) switches inputs to inches (in). Selecting a metric thread (e.g., M6) uses millimeters (mm).
Tips for best results
  • Keep your hole size within the previewed Hole Range for the selected thread.
  • Ensure your material thickness falls inside the Grip Range (watch for ✅ in the preview).
  • Confirm installation torque on a scrap panel to avoid spin-out; use knurled or hex bodies for higher resistance.