ELECTRONIC APPARATUS

摘要

A second measurement (H2) from a base end part of a guide part (42) to a leading end part thereof is larger than a first measurement (H1) between an O-ring (34) and a flange part (32). When passing a nut member (30) through a through hole (41), the guide part (42) hooks with a step part (35) of the flange part (32) before the O-ring (34) makes contact with the inner circumference face of the through hole (41), and initiates the guiding. Even when the O-ring (34) is disposed on the circumference face of the nut member (30), it is possible to insert the nut member (30) in an accurate site and state with respect to the through hole (41).