Official parts from CommunityCAD.
A growing library of the components engineers and makers build with: fasteners, bearings, motion parts, motors, electronics and more. Each part is modeled from published standards or official manufacturer drawings, and every dimension comes from a cited source. Each page lists where the numbers came from and how the part was verified.
Most parts come in two versions: simplified for fast assemblies, and detailed for close-up work and renders. Download them for free under CC-BY 4.0.
Found a dimension that looks wrong? Report it and we’ll fix it and log the change.
