This is a M20 Hex Nut. Nut length is 34mm. Accurate design. 4 file formats are attached. 3d editable iges file format attached. Details: Thread Pitch: 2.5mm Height: 16mm Width: 30mm Thread Dia: M20 (20mm)
Custom size and design possible, you have to contact with me. If you want other file formats please contact with me.
Thanks, Mahbub