This is a M4 Wing Nuts. Screw length is 13.6mm. Accurate design. 3 file formats are attached. Details: Outside Diameter (OD): 10mm Thread Pitch: 0.7mm Thread Size: M4 (4mm) Wing Height (L): 13.6mm Wing Width (W): 25mm Custom size and design possible, you have to contact with me. If you want other file formats please contact with me.
Thanks, Mahbub