MUL-T-LOCK Hercular Single Cylinder Deadbolt Mul-t-lock Padlocks HID compatible

HID compatible

so the locking handle set features an interior thumb turn only and an exterior keyed cylinder (Schlage C Keyway)

It has passed a 2 hour fire factory fire test with an external temperature  of 1750 degrees F

more complicated enterprise solutions

1/2″ thick solid steel door

MUL-T-LOCK Hercular Single Cylinder Deadbolt Mul-t-lock Padlocks HID compatibleWith its truly unique design, the MUL T LOCK Hercular deadbolt is truly spectacular. The Hercular is reinforced in just about every way possible. From a UL437 Listed Cylinder to a strong latch to Bolt Bearing Mechanism the Hercular Deadbolt will stop almost any attempt at forced entry. Strength usually does not mix with Flexibility. Not in the case of the Hercular since it is the only Grade 1 Deadlock with an adjustable backset.