Date Published:May. 10. 2020
Countermeasures for screw loosening are required 【Safety / precautionary measures】
Washers that prevent screw loosening simply by combining with commercially available hex nuts
Washers that prevent screw loosening in combination with commercially available hex nuts. The hex nut can be tightened by hand until tightening force is generated, making it easier to mount.
The high loosening-prevention performance has been demonstrated by Junker and NAS vibration tests.
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Vol.7 Screw Tightening Control Methods
Although fastening objects using the axial force generated from tightening is the main role of screws (bolts), in actual work, I think there are many people who control the torque by tightening with a torque wrench, because it is difficult to directly monitor the axial force, and so guarantee the axial force that way. However, there are other methods of control for tightening screws (bolts). These include those with only slightly greater axial force variation than with a torque wrench. Today, Nedzigon will tell you all about them.