HES 9600 605 Fail Safe/Fail Secure, Complete 12/24VDC Electric Strike, Surface Mounted, 3/4" Thickness, Bright Brass The 9600 Series is a windstorm rated, surface mounted electric strike designed to accommodate rim exit devices with a 3/4" throw latch. All components are completely encased within its 3/4" thick stainless steel housing, so no cutting on the frame is required for installation. Simply place the electric strike on the surface of the frame, align it with the exit latchbolt and install. It is field selectable for fail secure and fail safe operation, and for 12 or 24VDC.