Patent ID: 7161087

Claim:
A module assembly comprising: a case having at least one electrically non-conducting mounting portion with an internal wall defining a mounting opening therethrough, an electrically conducting insert molded into the mounting portion and extending partly into the mounting opening below an upper surface of the mounting portion surrounding said opening, an electrically conducting fastener comprising a head and a shank, at least one portion of the internal wall of the mounting portion being adapted for guiding the shank therethrough for mounting engagement with an object but without contacting the electrically conducting insert, an electrically conducting washer surrounding the shank adjacent the head thereof, the washer having at least one first portion extending obliquely outward and away from the head of the fastener to be deformed between the head of the washer and a surface of the mounting portion and thereby exert a mounting force on the case as the fastener is advanced through the mounting opening into engagement with the object, the washer having a second portion adjacent the head of the fastener that projects in a direction axially away from the head into the mounting opening to engage the electrically conducting insert below the upper surface of the mounting portion as the fastener is advanced to complete a series circuit from the electrically conducting insert through the washer and the fastener to the object and thus signal the achievement of a desired mounting force.