The 4500 series is the first electric strike designed for installation in 2 UL 10C firerated frames with 1/2 drywall penetration. The 4500 electric strike features a low profile 1 3/8 depth, heavy duty cast stainless steel construction and two faceplates designed to accommodate a variety of locksets for simple installation. Its strength is derived from a unique keeper pin locking design, enabling the 4500 to exceed the ratings of the frame, door and locking hardware. Designed for use with cylindrical and mortise locksets up to a 3/4 throw.