Rail fastening GBR-65 3D model is available on CGTrader for $15. Original author: Dufe. Specs: 122660 polys, 61380 verts.
STL (Stereolithography, filesize: 5.85 MB), OBJ (OBJ, filesize: 15.7 MB), MAX (Autodesk 3ds Max, filesize: 12.4 MB), DWG (AutoCAD, filesize: 1.55 MB), IGE (IGES, filesize: 2.02 MB), FBX (Autodesk FBX, filesize: 3.66 MB), STP (STEP, filesize: 1.61 MB)