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Butterfly wing nut

A butterfly nut is a type of nut, shaped like a butterfly.

Butterfly nut can be divided into cold heading butterfly nut, casting butterfly nut and stamping butterfly nut according to the technology.

According to the shape, it can be divided into two basic shapes: square wing and circular wing.

Divided into GB/T62.2-2004 square wing butterfly nut according to national standard number

Butterfly nuts with round wings GB/T62.1-2004 Stamping type butterfly nuts GB/T62.3-2004