Idle screw + nut for Mikuni TMX carburetors.
Genuine Mikuni high quality parts.
Mikuni part numbers: TMR36/09 (screw) and N138050 (nut). Part numbers 10 and 11 in the exploded view diagram.
This fits: the Mikuni TMX38-1 and TMX38-2 flatslide carburetor (does not fit the old-style TM/TMS carburetor).
Complete as pictured.