US Patent 7100237 Grommet

A grommet through which a long member is passed and mounted on a fixing hole of a fixing plate, includes an outer member and an inner member. The outer member includes a cylindrical insertion portion, through which the long member is passed, a brim-shaped close contact portion, extending outward from the insertion portion and having a mounting groove engaging with an edge of the fixing hole and an inner groove, formed on an inside face of the close contact portion. The inner member include a periphery edge portion, substantially shaped into a disc shape having a central opening, and inserted in the inner groove and a projection, extended from the periphery edge portion.