Hi David,

did the same to my screwhead as you did and i think it works just fine.

Only thing i have to do is finding some good steel slotted screws for it.

I only had some brass screws , but they are way to soft.

When i showed the clock to my family and they saw the bead they  asked me what kind of routerbit

or specialty plane i had used to make it.

They looked at me as if i was on some kind of drugs when i told them it was just made with a screw in a block of wood,

until i showed them.

You should have seen the look on their faces .