This is a door trim panel retainer. Useful for a variety of applications, it is OE for Toyota models (1991-present).  It matches Toyota OE Part Number 67771-16170. Although this retainer is OE for Toyota vehicles, it is universal and can be used on any vehicle or application requiring this type of retainer and meeting these specifications.
                                                                                    Material: Nylon
                                                                                    Fastener Type: Double Head
                                                                                    Top Head Diameter: 13MM
                                                                                    Bottom Head Diameter: 19MM
                                                                                    Stem Diameter: 11MM
                                                                                    Stem Length: 15MM
                                                                                    Color: White
                                                                                    Matches OEM Part Number: Toyota: 67771-16170