The Alarm Controls ASP-AM6305 is a filler plate, also known as a spacer plate, designed to facilitate the proper installation of magnetic locks. This accessory is specifically intended for use with 1200 lb. single magnetic locks, providing a necessary flat mounting surface or additional spacing on door frames where the magnetic lock unit may exceed the available mounting area. It measures 10-1/2 inches in length, 1-1/2 inches in width, and 5/8 inch in depth. The plate features a clear anodized (US28) finish, commonly associated with aluminum components, ensuring integration with existing hardware. This component is crucial for achieving optimal face-to-face contact between the electromagnet and the armature plate, which is essential for the magnetic lock's holding force.