A
clamp, roughly in the shape of a
c, but more like a
g, used to clamp
theatrical instruments to the
pipes that hold them. They have a large
screw at an angle that effectively makes the opening in the c bigger or smaller, forcing the
pipe into the
upper curve of the c. They also are the point at which the
pan for the
instrument is set. To facilitate this, most
clamps have a
set screw, sometimes called a
fuck nut, which clamps a
rotating shaft to which the
instrument is attached. Tighting the set screw too tight can result in
shearing it off, which is a
bad thing.