A mechanical suture fastener is disclosed. The mechanical suture fastener includes a crimpable sleeve defining a channel therein. The crimpable sleeve also has a sleeve length, a channel diameter, and a sleeve length to channel diameter ratio of at least 4.0. The mechanical suture fastener also includes a flange joined to the crimpable sleeve on a distal end of the sleeve. The flange further includes a distal opening which is in communication with a proximal opening defined by the crimpable sleeve. The mechanical suture fastener also includes an inner flange radius of at least 0.007 inches.
