I’m Looking For 3D Geometry Datasets Of Bulk Parts

Hi I’m Searching a Datasets for bill parts. (Small handles, electrical, connectors, screws, Nuts, Bolts etc.)

I’m doing my Bachelorsthesis in the automatic parametrisation of Vibration feeders and I need to categorize the geometry before I can select the arrangement mechanism that I’ll need

Does anyone have a idea where I can search for them? 🙂