Du-Bro Part - 190
This 4 piece set fits perfectly in servo arm hole, bellcranks, nylon horns, and throttle arms. Set includes (1) ball threaded for 0-80 (1/16" diameter thread), (1) self threading nylon socket, (1) threaded coupler 3/4" long with 3/8" 2-56 thread for up to .072" rod.