The Securitron SFP-3/8CL-12 Stop Filler Plate by ASSA ABLOY serves as a door hardware accessory designed to fill or extend a door stop. It creates a flat mounting surface for the Magnalock, enhancing installation versatility. This plate is available in multiple thicknesses including 1/4", 3/8", 1/2", and 5/8", all maintaining a consistent width of 1-1/4". Its clear anodized finish provides a durable and appealing look, suitable for various door hardware setups.