About Prime-Line Products
- Mechanical locks and door guard plates for entry doors, secondary window locks and patio doors locks. Cam locks and Mail box locks. Security locks for windows, patio doors, entry doors and utility cabinets. Prime Line also manufactures over 100,000 differnt items for the window and door industry including screen doors and hardware, patio door handles, and locks, window hardware and balences, shower door hardware, closet door hardware and builders hardware.