An apparatus, comprising: (a) a body; (b) an anvil defining an annular array of staple forming pockets; (c) a firing assembly comprising: (i) a staple driver, (ii) a deck member, and (iii) an annular array of staples, wherein the staple driver is operable to actuate between an unfired position and a fired position to drive the annular array of staples through the deck member and against the annular array of staple forming pockets; and (d) a closure assembly comprising: (i) a trocar configured to selectively couple with the anvil and actuate the anvil relative to the body to capture tissue between the anvil and the deck member, and (ii) an overriding adjustment knob (460; 760; 860) rotatably coupled with the body, where the overriding adjustment knob (460; 760; 860) is configured to be rotated relative to the body by a user to actuate the trocar relative to the body, and (iii) a torque limiting adjustment knob (600; 700; 800) associated with the overriding adjustment knob (460; 760; 860), wherein the torque limiting adjustment knob (600; 700; 800) is configured to be rotated relative to the body by a user to selectively rotate the overriding adjustment knob (460; 760; 860) to actuate the trocar and the anvil proximally until tissue captured between the anvil and the deck member is compressed under a predetermined maximum clamping force, wherein the torque limiting adjustment knob (600; 700; 800) is configured to slip relative to the overriding adjustment knob (460; 760; 860) when tissue captured between the anvil and the deck member is compressed over the predetermined maximum clamping force. (a) a body; (b) an anvil defining an annular array of staple forming pockets; (c) a firing assembly comprising: (i) a staple driver, (ii) a deck member, and (iii) an annular array of staples, wherein the staple driver is operable to actuate between an unfired position and a fired position to drive the annular array of staples through the deck member and against the annular array of staple forming pockets; and (i) a staple driver, (ii) a deck member, and (iii) an annular array of staples, wherein the staple driver is operable to actuate between an unfired position and a fired position to drive the annular array of staples through the deck member and against the annular array of staple forming pockets; and (d) a closure assembly comprising: (i) a trocar configured to selectively couple with the anvil and actuate the anvil relative to the body to capture tissue between the anvil and the deck member, and (ii) an overriding adjustment knob (460; 760; 860) rotatably coupled with the body, where the overriding adjustment knob (460; 760; 860) is configured to be rotated relative to the body by a user to actuate the trocar relative to the body, and (iii) a torque limiting adjustment knob (600; 700; 800) associated with the overriding adjustment knob (460; 760; 860), wherein the torque limiting adjustment knob (600; 700; 800) is configured to be rotated relative to the body by a user to selectively rotate the overriding adjustment knob (460; 760; 860) to actuate the trocar and the anvil proximally until tissue captured between the anvil and the deck member is compressed under a predetermined maximum clamping force, wherein the torque limiting adjustment knob (600; 700; 800) is configured to slip relative to the overriding adjustment knob (460; 760; 860) when tissue captured between the anvil and the deck member is compressed over the predetermined maximum clamping force. (i) a trocar configured to selectively couple with the anvil and actuate the anvil relative to the body to capture tissue between the anvil and the deck member, and (ii) an overriding adjustment knob (460; 760; 860) rotatably coupled with the body, where the overriding adjustment knob (460; 760; 860) is configured to be rotated relative to the body by a user to actuate the trocar relative to the body, and (iii) a torque limiting adjustment knob (600; 700; 800) associated with the overriding adjustment knob (460; 760; 860), wherein the torque limiting adjustment knob (600; 700; 800) is configured to be rotated relative to the body by a user to selectively rotate the overriding adjustment knob (460; 760; 860) to actuate the trocar and the anvil proximally until tissue captured between the anvil and the deck member is compressed under a predetermined maximum clamping force, wherein the torque limiting adjustment knob (600; 700; 800) is configured to slip relative to the overriding adjustment knob (460; 760; 860) when tissue captured between the anvil and the deck member is compressed over the predetermined maximum clamping force.