Thread: Revised door locks????

I remember the first cple months I joined the forum, some 1 had posted about the issue of other people w b13's being able to open other b13 doors and I seen this type of key hole, like the type that uses the kinda key 4 a bike lock. I searched the forum and couldn't find anything on it. Now I'm hoping some1 can give me some info on where I can buy these things at Thanks