An end-effector assembly includes opposing first and second jaw assemblies pivotably mounted with respect to one another. The first jaw assembly includes a first jaw member including a first arm member defining one or more apertures at least partially therethrough and a first support base extending distally therefrom, wherein an engagement structure of the first arm member is joined to an engagement structure of the first support base. The second jaw assembly includes a second jaw member including a second arm member defining one or more apertures at least partially therethrough and a second support base extending distally therefrom, wherein an engagement structure of the second arm member is joined to an engagement structure of the second support base. One or more pivot pins are engaged with the one or more apertures of the first and second jaw members.
