An end effector (100) includes an anvil member (120), a cartridge member(110), and a pivot plate (130, 230) connected to the anvil member and the cartridge member. The anvil member defines fastener forming pockets. The cartridge member defines fastener retaining slots. The cartridge member supports fasteners in the fastener retaining slots. The pivot plate is movable relative to the anvil member and the cartridge member to adjust a formation height of the fasteners upon a firing of the end effector. The pivot plate defines a channel (136, 232, 234) within a body portion of the pivot plate. At least one of the anvil member and the cartridge member includes a pin (115) extending therefrom. The channel is dimensioned to receive the pin. A movement of the pivot plate enables the pin to move along the channel and move at least one of the anvil member and the cartridge member relative to the other.
