DESCRIPTIONThis motor mount screw is for metal motors only. If the motor has a metal motor pulley, it most likely has a metal motor housing. Also the metal motors do not have ventilation slots where as the bakelite ones do. The screw will either come in black or chrome and will include a washer. We also carry a screwdriver that is perfect for removing this screw. Contact us if you have any questions regarding this product.