Snap fastener

The snap fastener comprises a female fastener body and a male fastener body which are buckled in a matched mode, the female fastener body comprises a face fastener body and a slingshot cup, and the male fastener body comprises a button bead and a straight flute. The slingshot cup comprises eight petals and a fixing piece fixedly connected with the eight petals, and the fixing piece is provided with an open hole which is connected with the windowing flute on the face buckle in a turned and clamped mode. The button bead is provided with a hollow protruding structure which is installed on the protruding part of the straight flute in a pressing connection mode. According to the snap fastener, the fixing mode of the female fastener and the male fastener is improved, so that the binding strengthof the snap fastener is improved, and the snap fastener can be suitable for places with higher requirements on the binding strength of the snap fastener. 本实用新型公开了一种四合扣，包括配合扣合的母扣和公扣，母扣包括面扣和弹弓杯，公扣包括钮珠和直笛；弹弓杯包括八瓣和与八瓣固定连接的固定件，且固