bit
a thin pointed piece of metal is called a spike
Burr or metal fragment
A shrapnel.
if you are referring to horses, it is not called a "cheek strap". It is called a "cheek piece". A cheek piece is part of the bridle. When on a horse, it is along the side of a horses face, basically where the horses cheek is (from the ears to the muzzle). It is joined to the Bit (in the horses mouth) and the head piece which is the part of the bridle that is at the top of the horses head, by the poll (behind its ears). I hope this was helpful information.
A scold's bridle, also known as a branks, was a form of punishment device used in the past to discipline women who were deemed to be gossips or troublemakers. It typically consisted of a metal framework that enclosed the head, with a metal bit placed in the mouth to inhibit speech.
The device that is place in the horses mouth is called a bit. It is a bar of metal used to steer the horse when riding.
it is called a meteorite
Hinge.
Escutcheon
It's called a dowel.
A horses belly can be called a belly or stomach typically. If you are looking at the horse from the side and are assessing the horses conformation the entire mid-piece of the horse, stomach included, is called the barrel.
Because wood is a poor conductor there for it doesn't allow the saliva on your tongue to freeze like the metal would.