I bought this when I moved into a house with a hard to turn deadbolt. My dad told me about this type of product a long time ago so I tried it and it worked great. I blew on the lock a little and it turned easily. I've used it on doorknobs and car doors ever since. The only complaint I have is that the hole gets clogged easily and I have to put something in it every time to remove it, but it wasn't enough to get the star off.
Copper Anti-Seize Stick by Loctite - 20-Gram Size
8 Review
π Permatex 20353 Ultra Disc Brake Caliper Lube, 2 oz. β Advanced Lubrication for Optimal Brake Performance
9 Review
Anticorrosive coating / Anticorrosive Defender Auto 150 ml. (Transparent)
24 Review
10 Pack of π΄ Lucas Oil Red N Tacky Grease
18 Review