UMS 5-180cc THROTTLE LEVER SCREW ( X 10 Pack)

Replacement throttle lever screw for the UMS 5-180cc, the five-cylinder 180cc four-stroke radial from UMS.

Function: it is the throttle linkage screws that clamp the throttle rod to the lever.

The reason this ends up on an order: a screw that will not hold lets the throttle setting creep — a real hazard in flight. Supplied as a pack of 10, which is how these small parts are normally bought — you rarely need just one.

Fitting note: Use thread lock sparingly and check the linkage cannot slip under load.