Please use our glossary to help become more familiar with the words, terms and phrases commonly found and used in the screens, windows and doors industry. You may either display the set of terms by A-Z or use our search form below to look for a particular term.
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KD
Knocked Down - product components that are shipped unassembled, e.g., the frame for a sliding glass door.
Keeper
A hardware device into which a window locking latch engages for security.
Kerf
The channel or groove cut by a saw or other tool.
Keyed-Different Cylinders
Cylinders requiring individual keys for their operation.
KeyedAlike Cylinders
Cylinders operated by the same key. (Not to be confused with master-keyed cylinders.)
Keyway
The keyhole of a cylinder lock.
Kick Plate
A plate applied to the face on the bottom of a door or sidelight to protect against abrasion or impact loads or maintain sight lines.
King Stud
A full-length stud nailed to the end of the header.
Knob
A round handle for actuating a locking or latching device.
Knocked Down (kd)
Unassembled window or door unit. Not including glass.
Knuckle
The parts of a butt hinge which enclose the hinge pin.
Krypton
An inert, nontoxic gas used in insulating windows to reduce heat transfer.
KWH
KiloWatt Hour. A unit of energy or work that is equal to one-thousand watt-hours.
