HES 7000-24-LBM Fail Safe/Fail Secure, Body Only, 24VDC Electric Strike, Latchbolt Monitor The 7000 Series offers two solutions to address pre-loaded doors. The in-frame adjustable feature allows the installer to easily adjust the electric strike opening to accommodate the horizontal position of the latchbolt after installation. The pre-load release function allows the electric strike to operate smoothly throughout the year under varying loads on the door caused by air-conditioning pressure, changes in the weather, warped doors or doors with weather stripping that often bind standard electric strikes. This unit accommodates cylindrical latchbolts up to 5/8" throw and rim exit latchbolts up to 3/4" throw.