ASME B 18.6.9 butterfly screw wing nuts are mainly used in some office equipment and machinery equipment. They are easy to install and disassemble, and are more convenient to use.
You can also find the use of butterfly nuts fasteners in the power industry, electronics industry, etc., because this material is insulating and can effectively prevent interference signals.
ASME/ANSI B18.6.9-1-2010 Heavy Square Metric Wing Nuts