Check out Multi-Head Automatic Screw Locking Machine Mechanism 3D model on CGTrader for $76. High-quality mesh by machinexdesigns.
SLDPRT (SolidWorks, filesize: 44.8 MB), STP (STEP, filesize: 52 MB), OTHER (Other, filesize: 6.68 MB), X_T (Parasolid, filesize: 11.6 MB), STL (Stereolithography, filesize: 57.2 MB), IGE (IGES, filesize: 8.48 MB)