MUL-T-LOCK Hercular Captive Key Deadbolt hollon and amsec 2 Hours of Certified Fire

2 Hours of Certified Fire Protection at 1700º

Three Adjustable Shelves

All additional keys come with nylon head only

Fits: Any surface mount rim lock ("Segal" type slam or jimmyproof)

MUL-T-LOCK Hercular Captive Key Deadbolt hollon and amsec 2 Hours of Certified FireThe Captive Key functions as a hybrid of a Single Cylinder and Double Cylinder Deadbolt. The inside part of the Hecular incorporates two cylinders. When the user wants the Hercular to act as a Single Cylinder Deadbolt they will insert a special key with a thumbturn attached to it into the central cylinder. There is a piece inside which locks the thumbturn into the lock itself. This way it will give the user the safety of being able exit the door