A forceps, comprising: an end effector assembly including first and second jaw members (110, 120), each of the jaw members (110, 120) including a proximal flange (150, 160) extending therefrom, each proximal flange (150, 160) defining a bifurcated configuration having first and second spaced-apart flange components (152, 154, 162, 164), the first flange components of the jaw members (110, 120) configured to pivotably engage one another via a first engagement portion and the second flange components of the jaw members configured to pivotably engage one another via a second engagement portion independent of the first engagement portion, at least one of the first and second jaw members (110, 120) pivotable relative to the other about the first and second engagement portions between an open position and a closed position for grasping tissue therebetween; characterised in that the forceps further comprises a guide member configured for positioning between the proximal flanges (150, 160) of the first and second jaw members (110, 120), the guide member including at least one tab extending transversely therefrom, the tab configured to operably engage one of the first and second engagement portions to retain the jaw members (110, 120) in engagement with one another, wherein the first flange component of each of the jaw members (110, 120) includes an aperture defined transversely therethrough, one of the first flange components including a boss disposed about the aperture thereof, the boss configured for engagement within the aperture of the other first flange component for pivotably engaging the first flange components to one another, and wherein the tab is configured for engagement within the aperture defined within each of the first flange components. an end effector assembly including first and second jaw members (110, 120), each of the jaw members (110, 120) including a proximal flange (150, 160) extending therefrom, each proximal flange (150, 160) defining a bifurcated configuration having first and second spaced-apart flange components (152, 154, 162, 164), the first flange components of the jaw members (110, 120) configured to pivotably engage one another via a first engagement portion and the second flange components of the jaw members configured to pivotably engage one another via a second engagement portion independent of the first engagement portion, at least one of the first and second jaw members (110, 120) pivotable relative to the other about the first and second engagement portions between an open position and a closed position for grasping tissue therebetween; characterised in that the forceps further comprises a guide member configured for positioning between the proximal flanges (150, 160) of the first and second jaw members (110, 120), the guide member including at least one tab extending transversely therefrom, the tab configured to operably engage one of the first and second engagement portions to retain the jaw members (110, 120) in engagement with one another, wherein the first flange component of each of the jaw members (110, 120) includes an aperture defined transversely therethrough, one of the first flange components including a boss disposed about the aperture thereof, the boss configured for engagement within the aperture of the other first flange component for pivotably engaging the first flange components to one another, and wherein the tab is configured for engagement within the aperture defined within each of the first flange components.