Split rivets, also known as T-rivets, provide additional grip support and pull-out
resistance by splaying out into three wings when inserted. The mandrel, when pulled,
causes the end of the rivet to separate into three wings, much like a flower blooming,
which are then flattened against the blind side of the application. Unlike tri-fold
rivets, split rivets do not remain attached to the base of the rivet and so they
form a single thickness of material once set.