Pushbuttons come with momentary or latching action

C&K COMPONENTS PHB Series pcb-mounted short-stroke pushbutton switches with an optional kinked-style termination facilitates secure mounting on two-sided PC boards. Devices are designed for through-hole pcb soldering and are available in either 2-pole (operating force 170g / 1.67N) or 4-pole (operating force 230g / 2.26N) configurations. Total travel distance is 2.5mm ± 0.5mm; with latching travel (for push on-push off action) of 1.5mm ± 0.5mm. With an economical and reliable sealed contact design, devices are rated for 1A@15dc.

http://www.ck-components.com/phb/pushbutton,10493,