It is not recommended to use wd 40 in or on any type of door locks or deadbolts.
Locks that actually are hard to enter for doors.
Good locks use mushroom pins or pick shields to prohibit thieves from using picking tools to pry the lock and enter your home.
Take your new deadbolt hardware and install it where the old one was.
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Remove the rest of the deadbolt hardware from the door.
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To ensure your door locks provide solid home security choose locks and deadbolts that are pick resistant and bump proof.
This bundle includes 4 keys that lock unlock both the entry knob and deadbolt which are built to withstand drilling sawing picking and prying.
They re known to resist force better than most and can often only be opened from inside if you don t have the key.
Deadbolt locks add additional security by only opening with a rotating key without the spring most standard locks have.
Doors are only as strong as their lock.
The wd 40 lubricant will work for a short time to lubricate but will eventually gum up the pin tumblers and cause them to stick in the chamber therefore making it difficult to unlock the door.
Insert your new deadbolt.