10pcs Set Slow Jet (32 to 55) for PWK CVK Type Carburetor Keihin OKO Motoritec Thread Diameter: 6mm Length: 28mm including 10mm Nut, 5mm thread Nut diameter: 5mm for CB400 CVK26/30 Universal pilot jet (applied on PE24-30 PZ26-30 CG125-200)