HES HES 5200-LBM Fail Safe/Fail Secure, Body Only, 12/24VDC Electric Strike, Latchbolt Monitor The 5200 series electric strike features an in-frame horizontal adjustable design to simplify the installation process. This features allows the installer to easily adjust the electric strike opening to accommodate the horizontal position of the latchbolt after the strike has been installed. This field selectable fail secure/fail safe unit is easy to install and accommodates latchbolts up to a 3/4" throw.