Patent attributes
A rubber plug (10) has a main body (11) with opposite front and rear ends. A wire insertion hole (12) extends through the main body (11) from the rear end to the front end and has a wire-introducing opening (14) at the rear end. A forwardly and inwardly tapered portion (18) is formed on the outer circumferential surface of the main body (11) at the front end and a fastening portion (17) is rearward of the tapered portion (18). Protrusions (19) project radially out at the front end of the main body (11). The maximum outer diameter of the front end, including the protrusions (19), exceeds the inner diameter of the wire-introducing opening (14) at the rear end of the main body (11) and is no greater than the minimum outer diameter of the fastening portion (17).
