It is used in the case of frequent disassembly and low force, and its inner screw hole is the same as the ordinary nut, and there is no special requirement for the bolt.
The wing nudaot is more compact than many nuts, and the appearance is also beautiful and beautiful.
Because of its unique shape, the butterfly nut has a head protruding like a beautiful butterfly, so it is named as a butterfly nut.

Package details:
4Pcs --- 3/8 - 16
6pcs --- 5/16 - 18
8pcs --- 1/4 - 20
10pcs --- 3/16 - 24
10pcs --- 8 - 32
12pcs --- 6 - 32