HPI 103729 M4 Serrated and Nylocking Ultimate wheel nuts Flanged, Silver (10)
Suitable for all 4mm wheel axles on touring cars etc
Serrated flange and nylock insert
Prevents wheel nut coming off even if it comes loose.
Pack of 10
Associated 91148 4mm wheel nuts, flanged, serrate, nylock, black alloy. (8)