Remove the hardware from the cabinet doors by unscrewing each piece. Label door hinges and their corresponding frames with the same number or letter to eliminate problems you may encounter when rehanging the doors due to slight variations among door frames.
Wash all of the door hardware with a degreaser to remove grease, dirt and other foreign substances. Sand the hardware to smooth imperfections and help the new paint to adhere.
Turn over an empty cardboard egg carton so that the bottom of the egg holders faces up. Screw the knobs and pulls onto the egg holders so that the hardware faces up and you can take advantage of the space between egg holders to maneuver while painting.
Spread newspaper out on a table or the ground. Work outdoors or in a well-ventilated area. Tape the paper to your working surface or use some other means to prevent the sides of the paper from blowing around or shifting. Place the hinges and any other hardware that do not fit on the egg cartons on the paper. Place your egg cartons atop of the papered working surface.
Spray the hardware with a paint primer. Allow to dry in the manner and time specified by the paint manufacturer.
Shake the can of spray paint for two minutes. Spray a light coat of paint on the hardware. Avoid hovering in any one spot with the paint. Shake the can occasionally throughout the painting session.
Allow the paint to dry and apply a second coat to provide a smoother finish.
Leave the paint to cure for at least 24. Replace the hardware on the cabinets.