staple
One of the several wire fasteners used in SADDLE STITCHING and
SIDE STITCHING
pamphlets, periodical issues, and the like.
Staples for this type of work are of two general
types: those already formed and fed automatically,
and a continuous roll of wire that is snipped off,
formed into a staple, and clinched. Round wire
staples are used for saddle stitching, and flat
wire staples for side stitching. (234 )