HBFS-30-G3 SCREW Fit in 30mm hole. Pushbutton, Snap-In with buckle All New Unique Plug Design. Smooth surface reduces finger resistance. Suitable for panel thickness: 2mm ~ 4mm Designed For Professional Fight Gamers Noise-Reducing Design Life (at 5 V, 1mA, no load): 50 million cycle Suited For 2.8mm Terminals