Cap Nut STEP Files

High-form cap (acorn) nuts to DIN 1587, M4–M12. Dome height is modeled, so you can pre-check the maximum bolt stick-out — for exposed joints where safety and looks matter.

Free 3D CAD models (STEP AP214). Built to real standard dimensions; threads are simplified (plain shank) per free-library convention.

Standard: DIN 1587 (high form)

DownloadM4.step
Browse all sizes (6)

Using these STEP files in CAD

  • STEP AP214 format opens directly in SolidWorks, Inventor, Fusion, CATIA, NX, FreeCAD, and most CAD systems.
  • Per free-library convention, threads are not modeled (plain shank). These are for layout, clearance, and drawings — not fastening simulation.
  • All dimensions use the standard's nominal values. For tolerance-critical use, check the allowances in the spec table.
Cap Nut View spec table →
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