Mini ball-link horn, short version. For small R/C models with control surfaces 4 to 6 mm thick.
Product information
This ingenious item ensures a slop-free linkage, and is easy to mount securely on parallel and tapered control surfaces alike. You just need to drill a 4 mm Ø hole. The horn is then pushed in from one side and the spreader plate from the other, and both are secured with UHU-Blitz cyano.