Heavy Hex Bolt manufacturer introduced that the large torque of high-strength hex nuts is affected by many factors. In order to study the low-cycle fatigue performance of high-strength hex nuts, high-strength hex nuts have a medium diameter, helix angle, and tooth angle. High-strength hexagon nuts have a large elastic restoring force FNmax and equivalent friction angle. There will be some changes after repeated use.

Magnetic methods are used to measure coating thickness. High-strength hexagon nuts are used for non-destructive measurement of the non-magnetic coating on the magnetic substrate using a magnetic thickness gauge. The microscopic method is called the metallographic method. High-strength hex nuts are strictly etched. The firmware is magnified on a metallurgical microscope with a micrometer eyepiece to measure the coating thickness of the part. Timing process method. The coating thickness of the high-strength hex nut is calculated based on the time required for the partial coating to dissolve. High-strength hexagon nuts also have an electroplating drop method, anode dissolution coulometric method, and so on.