St624 Fixed Stereo Microscope ,Amscope Dissecting Microscope,Stereo Inspection Microscope,Swift Stereo Eighty Microscope Ningbo Beilun Kalinu Optoelectronic Technology Co.,Ltd , https://www.kalinueot.com There are many types of quick release nuts, and a new type of quick release nut (as shown) is now introduced. When working, put the nut 1 along the screw end of the flattened screw. When it is in position, tighten it clockwise. If it is rotated counterclockwise, the nut can be removed and the workpiece can be loaded and unloaded. Practice has proved that this quick release nut is simple and reliable.