lingua:
HEAD SEAT THREAD 20 60° M12x1.25 MM CONE SIZE
HEAD SEAT THREAD 20 60° M12x1.5 MM CONE SIZE
HEAD SEAT THREAD 20 60° M12x1.75 MM CONE SIZE
HEAD SEAT THREAD 20 60° M14x1.25 MM CONE SIZE
HEAD SEAT THREAD 20 60° M14x1.5 MM CONE SIZE