H

hardware schedule
n. a listing of the door hardware used on a particular job. It includes the types of hardware, manufacturers, locations, finishes, and sizes. It should include a keying schedule specifying how each locking device is to be keyed.

high security cylinder
n. a cylinder which offers a greater degree of resistance to any or all of the following: picking, impressioning, key duplication, drilling or other forms of forcible entry

HKP
abb. housekeeper`s key

hollow post key
[image] A key with a bit projecting from a hollow cylindrical shaft.

housekeeper`s key
n. a selective master key in a hotel master key system which may operate all guest and linen rooms and other housekeeping areas

housing
n. that part of a locking device which is designed to hold a core