Abstract: A boss assembly includes: a first boss formed integrally with a first portion of an enclosure that cooperates with a second portion thereof to enclose a volume, wherein the first passage communicates between the enclosed volume at an internal aperture and an external environment at an external aperture; an enclosure screw having an enlarged head to retain the enclosure screw within the first passage and an elongate threaded shaft portion to extend out of the first passage through the internal aperture, into the interior volume and into a second passage of a second boss of the second portion; and a threaded insert that is sized to engage interior surfaces of the first passage with a tight fit when inserted therein between the head of the enclosure screw and the external aperture, wherein the first threaded insert defines a threaded third passage that extends therethrough.

Abstract: A boss assembly includes: a first boss formed integrally with a first portion of an enclosure that cooperates with a second portion thereof to enclose a volume, wherein the first passage communicates between the enclosed volume at an internal aperture and an external environment at an external aperture; an enclosure screw having an enlarged head to retain the enclosure screw within the first passage and an elongate threaded shaft portion to extend out of the first passage through the internal aperture, into the interior volume and into a second passage of a second boss of the second portion; and a threaded insert that is sized to engage interior surfaces of the first passage with a tight fit when inserted therein between the head of the enclosure screw and the external aperture, wherein the first threaded insert defines a threaded third passage that extends therethrough.