Is the "stub" on the end of a warded key required?

[9jack9]

Is the "stub" on the end of a warded key required to operate the lock, or is it just there to make sure everything else lines up right?

Examples of blanks and keys with the end stub.

http://mysecuritypro.com/images/product ... 0small.jpg

http://mysecuritypro.com/images/product ... lsmall.jpg


Examples of warded skeleton keys with the same (but smaller) end stub.

https://cdn.shopify.com/s/files/1/0078/ ... _large.jpg

[GWiens2001]

The first two pics are key blanks normally used for lever locks, though there are a few warded ones that use them.

The pick set (your last picture) is a warded pick set. With some, the tip is needed, with some, not.

Gordon

[mseifert]

I am not a warded lock expert, but I believe sometimes there is a hole in the back side of the lock that the stub lines up with so when the key is turned in remains in alignment.

[gumptrick]

I am not a warded lock expert, but I believe sometimes there is a hole in the back side of the lock that the stub lines up with so when the key is turned in remains in alignment.

Yes, I've noticed the same. In my experience most warded locks can be opened without your pick or key needing to fit into that hole. However I could imagine that if you had a lock with really strong springs inside then having that "stub" fit into the hole would help keep things properly aligned when you're applying a lot of torque on the key or pick.

[ltdbjd]

You're right on. Typically the end of the key rests in a slot to keep everything aligned. Otherwise the key may not be fully inserted, or there may be unintentional upward or downward movement.

The warded key set shown doesn't need the tip at the end. Things don't have to line up like they would if you were using a warded key.

[capt.dunc]

worth noting that these blanks and the picks are for different types of locks. the blanks are for american style lever locks and those picks are for warded padlocks