SCREW CONVEYOR 500X10073 (Polygon mesh 3D model) is available on CGTrader for $30. Original author: rasari35-0cf8ce. Specs: 50 polys, 50 verts.
3MF (3D Manufacturing File, filesize: 3.56 MB), IGE (IGES, filesize: 55.8 MB), X_T (Parasolid, filesize: 15.4 MB), OTHER (Other, filesize: 26 MB)