Abstract: A two-part detachable fastener for use as a button of a garment. The male member is formed of an inverted U-shaped pin which snaps into a restricted opening of a cap-like female member so as to fasten to one or more layers of a garment held between the male and female members. The pin of the male member is formed with an externally pointed mid-section, with the external opposed sides of the legs of the pin shaped as projecting teeth and with the end of each leg bent at right angles to the axis of the pin and enclosed in a circular hollow button.