What is a single cylinder deadbolt? A single cylinder deadbolt is typically used on a front or back exterior door and is operated with a key from the exterior of the home and a thumb turn from the interior.
What is a double cylinder deadbolt? A double cylinder deadbolt is typically used on a front or back exterior door and is operated with a key from both the exterior and interior of the home. Double cylinder deadbolts are recommended when a window is in close proximity to the door. The interior keyway prevents an intruder from accessing your home by breaking the glass and turning the thumb turn to open the door.
What other types of locksets available? There are keyed handleset, entryset, knob and lever. They are generally used for exterior applications. It is operated with a key from the exterior of the home and a turn button or turn knob from the interior.
What is privacy lock? A privacy knob or lever is generally used on a bathroom or bedroom door. It provides a turn button lock or turn knob on the inside and comes with an emergency release on the outside that allows the door to be unlocked by inserting an emergency release tool.