Will Power
Gold Member
- Joined
- Jan 18, 2007
- Messages
- 33,363
They could probably be flush if the handles were counter bored, like at the pivot pin on most sodbusters. The collars are a great way to prevent splitting though, since instead of the peened pin pushing outwards against the horn it's pushing outward against the collar. The collar then is pressing straight down on the surface of the horn.
Right, they act as a washer.