When looking at an entry door lock also known as a lockset check the security grade.
Locks options for old doors.
Single cylinder locks only have a space for a key on one side.
The american national standards institute ansi designates three levels.
Ultra security 44609 old time mortise lock with skeleton key brass plated finish replaces most mortise interior locks from the early 1900 s 4 1 out of 5 stars 129 prime line c 1280 mortise style sliding door handle set replace old or damaged door handles quickly and easily for right or left handed doors white diecast 3 15 16.
Vintage antique old door lock with black porcelain door knobs lot 6.
Best seller schlage camelot satin nickel electronic door lock with accent door lever featuring flex lock.
Limit 5 per order.
Cost effective and simple to install.
Available in a variety of styles to coordinate with existing decor.
This is a good option if the full door lock mechanism will be expensive to replace.
You can typically have multiple entry door locks set keyed to work with the same key.
Grade 2 offers mid level security while grade 3 provides basic security.
Free shipping on many items.
Designed for exterior sliding doors.
The other side has a twist knob that locks the door from the other side.
Great option for homeowners who need to grant remote access to relatives guests or service workers.
Grade 1 is the highest.
But it s often less expensive to purchase a new lock.