Most fully tempered heavy glass doors are secured using a dead bolt lock with standard-keyedcylinders and/or thumb turns. Locks can be mounted into a door rail or a patch fitting. Locks aretypically mounted on the bottom of the door, with the bolts engaging a strike plate or threshold.If a round throw bolt is used, a covered "dustproof" strike may be used to prevent dirt accumulationin the strike area.

Occasionally, it is desirable to locate the lock in the jamb of the opening. In order to accomplishthis, a center lock housing is mounted on the door at the handle height to accommodate thelock. The strike plate is mounted on an adjacent sidelite or metal door jamb. Electric locks andstrikes, both drop bolt and magnetic, may be used. Exit devices can be installed in all fullytempered heavy glass doors, engaging in the top,bottom and/or jamb of the opening.