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14X-4-403.3.1 Doors Other Than Sliding Glass Doors
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The door must be equipped with a deadbolt lock with at least a one-inch (25.4 mm) saw-resistant bolt projection, or with a rim-mounted deadbolt lock or vertical drop deadbolt lock providing equivalent security. Every such lock must be operable from the outside by a key or keypad and from the inside by a turnpiece, handle, or knob which does not require a key or any special knowledge to operate.
Every lock cylinder which projects beyond the exterior face of the door or can be accessed from outside the dwelling unit by gripping tools must be equipped with a metal ring or plate protecting the otherwise-exposed portion of the cylinder lock from wrenching, prying, pulling, or cutting by attack tools and a guard plate designed to protect the cylinder from removal or drilling.
Door hinges which can be accessed from outside the dwelling unit must be equipped with nonremovable hinge pins or jam pins.
The door must be equipped with a device which allows a person inside the dwelling unit to view a person immediately outside the door without opening the door. A viewing device may be a peephole with a 160-degree (2.8 rad) field of view, a window, or any other device which accomplishes the purpose of a viewing device without affecting the fire-resistive rating of the door, walls, or any other portion of the building.
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