Genuine VW Audi SEAT Skoda N90905502 Threaded Stud / Double-Ended Stud – M10 x M8 x 73mm. Original VW Group threaded stud / threaded pin / double-ended stud bolt with part number N90905502, used in various VW Audi SEAT Skoda applications, typically in the timing belt / cambelt tensioner / idler / roller mounting area on selected diesel engines.