卡扣是用于一个零件与另一零件的嵌入连接或整体闭锁的机构，通常用于塑料件的联接，其材料通常由具有一定柔韧性的塑料材料构成。卡扣连接最大的特点是安装拆卸方便，可以做到免工具拆卸。现在卡扣连接技术已广泛的应用于汽车内饰件的连接上
Clasp is a mechanism used for inserting and connecting one part to another or for locking the whole part. It is usually used for joining plastic parts. The material of clasp is usually made of plastic materials with certain flexibility. The biggest characteristic of the snap connection is that it is easy to install and disassemble, and can be disassembled without tools. Nowadays, the fastening technology has been widely used in the connection of automotive interior parts.