A method of adjusting a stapling gap (Y) in a surgical stapling apparatus (100), comprising: providing a surgical stapling apparatus having a jaw structure (120) with a portion (122) for anvil housing and a jaw structure (110) with a portion (112) for housing the cartridge, the jaw structures being functionally coupled to each other to provide a stapling gap between a respective front portion (part) of the housing portions of the anvil and of the cartridge, one of the jaw structures having a pair of mounting elements (112, 114) located thereon to mount the other of the jaw structures on them; placing a separation adjustment element (200) on the mounting elements (112, 114) between the jaw structures to provide a desired separation between the front portions (parts) of the anvil and cartridge housing portions; and locking the separation adjustment element (200) to the mounting elements to provide the desired stapling separation, where the separation adjustment element (200) is locked in place by at least one deformation, stippling, tapping, crimping, punching, welding and gluing of the separation adjustment element (200) against at least one of the mounting elements (112, 114).Un método de ajuste de una separación (Y) de grapado en un aparato (100) de grapado quirúrgico, que comprende: proporcionar un aparato de grapado quirúrgico que tenga una estructura (120) de mandíbula con una porción (122) para alojamiento del yunque y una estructura (110) de mandíbula con una porción (112) para alojamiento del cartucho, siendo las estructuras de mandíbula funcionalmente acoplables la una a la otra para proporcionar una separación de grapado entre una porción (parte) delantera respectiva de las porciones para alojamiento del yunque y del cartucho, teniendo una de las estructuras de mandíbula una pareja de elementos (112, 114) de montaje situados sobre ella para montar la otra de las estructuras de mandíbula sobre ellos; colocar un elemento (200) de ajuste de la separación sobre