Metal key-pad dome switches are snap action

KEYSTONE Snap action ‘Key-Pad’ dome contact switches provide a momentary contact for printed circuit boards, flex circuits, membrane switches and discrete switches. Manufactured from Nickel-plated stainless steel and equipped with a four-legged shape, devices provide enhanced durability, reliability and versatility while maintaining exceptional tactile feel for single or double-sided printed circuit boards, flex circuits and membrane switch panels. Products come in in mini (.331” dia), compact (.394” dia) and maxi (.480” dia) styles with trip forces from 7.8 oz. to 14.8 oz. http://www.keyelco.com