A device for securing access, typically on a door, and typically controlled with a key or combination.

learn more… | top users | synonyms (1)

2
votes
4answers
13k views

How to remove a stuck key?

A hypothetical question - if I get a key in the door lock from one side of the door, could I somehow use another key to open the door from the other side? And what if you could "engineer" the stuck ...
5
votes
5answers
2k views

Home wireless lock

How can I improve my home with a kind of front door lock that would act like those car that can unlock when it receive signal of the key in your pant? My goal would be to keep my keys in my pant ...
1
vote
2answers
439 views

Replacement key for an old sewing machine?

I'm having an old sewing machine with a simple lock, for which I can't find the key. What's the best way to: Find a good replacement key for it If it's not possible, pick the lock so that it'll be ...
13
votes
5answers
13k views

What kind of lubrication should I use for a lock?

I recently made the Yale lock on my front door much easier to open by spraying some WD-40 in there. However, I just saw this question on WD-40 not being a “true” lubricant, and wondered whether it ...
3
votes
4answers
10k views

Why does my latch not retract when I push or swing the door shut, but will retract when the knob/lever is used?

This just started today. I have to turn the knob in order for the latch to retract. Before, I could just push to door shut and the latch would retract when it hit the plate on the door frame. But now ...
2
votes
1answer
375 views

what parameters should I look for when choosing an electric deadbolt?

I am looking for electric deadbolts for external steel doors - to place several of them on a door - one on each side (top, bottom, left, right) for extra security. I want to buy just the deadbolt ...
11
votes
5answers
15k views

How to tell if your locks are bump proof?

I was reading about lock "bumping" where burglars buy 'bump' keys and can open locks very quickly. I was also reading that some locks are bump proof (double chamber perhaps?). My question is: how can ...
5
votes
4answers
3k views

How can I prevent an outside lock from freezing?

I store a bunch of the "outside stuff" in the shed for the winter. Mainly things that I only use when the weather is warmer. It pretty much remains locked up for the winter. Occasionally though, I ...
15
votes
1answer
1k views

How does Schlage SecureKey Re-keying mechanism work?

Here is their consumer info. And here is an amateur teardown, although I can't tell from the pictures how the thing actually works. Does any one have any better powers explanation? But beyond just ...
8
votes
5answers
4k views

What is the best way to secure a set of folding attic stairs?

My company is opening a new office in an existing office building. While inspecting the office prior to move-in, I noticed that the attics between all suites in the building are open to each other. ...
7
votes
2answers
375 views

How long do batteries typically last in electronic deadbolts?

I'm considering getting a Schlage Plymouth Keypad for our front-door but was curious how long the 9V battery typically lasts. The web site says "3 year battery life" but I'm... skeptical. =) Has ...
2
votes
1answer
4k views

How do I replace mortise locks with bored cylindrical locks?

I purchased an older home that has mortise locks in all of the doors. They're all very difficult to use and some of them don't work at all, making the doors difficult to impossible to close. Since I'm ...
2
votes
2answers
3k views

How so I fix a loose Kwikset deadbolt faceplate?

We have a kwikset deadbolt on our main door and the faceplate has come loose. There are no visible screws on either side of the door, so I am assuming they are under the brass plate on the inside of ...
7
votes
6answers
2k views

Is it worth having two locks in exterior doors?

I've noticed that some places have a lock in the knob and a deadbolt in the exterior doors, and some places have a knob without a lock and just a deadbolt. Is there a benefit to having a lock in the ...