pinning sets

[chris134711]

Where would one use/need serrated pins/threaded pin holes in the door lock's bible? How would one pick a lock with threaded pins? Wouldn't the pin be immovable?

[Squelchtone]

Is there a particular lock you are looking at that your question is about?

If there is threading or counter milling in the bible chambers, it should be a diameter larger than the diameter of the pin, but enough to get stuck stuck when picking if tension is applied.

it isn't like the pins are loaded into a lock by screwing them into the bible like a machine screw being threaded into a tapped hole made for that size screw thread.

more details are welcome in case I misunderstood your question,
Squelchtone