https://selfless.wiki/wiki/How...._To_Explain_Composit
Replacement Lock For Composite Door If your key doesn't turn inside your door made of composite, it could be a problem with the gearbox or cylinder. Christopher The Locksmith recommends upgrading to a high-security fitment because older locks don't have the anti-bumping, anti-drilling and anti-snap mechanisms that are now standard on modern doors. Deadbolt Composite doors are an excellent option for any house, enhancing appearance and ensuring security. Like other products they aren't immune to