1.1本术语涵盖按钮行业中使用的特殊术语或特殊含义。这些定义仅适用于贯穿法兰和柄扣。 1.2本术语中定义的主要按钮类型如图所示。1-8. 这些图仅为说明性的，无意对设计造成限制。

1.1 This terminology covers special terms or special meanings used in the button industry. These definitions apply only to sew-through flange and shank buttons. 1.2 The principal types of buttons defined in this terminology are illustrated in Figs. 1-8. These figures are descriptive only and are not intended to be restrictive as to design.