A surgical fastener applying apparatus (1000) having a first jaw (1010) and a second jaw (1008). The first jaw includes a cartridge body (112) having plurality of surgical fasteners (130) disposed therein. The plurality of surgical fasteners include a plurality of first surgical fasteners (130) having a first backspan (134) with a first configuration, and a plurality of second surgical fasteners (130A) having a second backspan (134A) with a second, different configuration such that the plurality of first surgical fasteners apply a first compressive force to tissue upon formation and the plurality of second surgical fasteners apply a second, different compressive force to tissue upon formation.
