Extremely High Self-Locking Effect
The Symmetry Bolt has been laboratory tested for a severe vibration and impact based on National Aerospace Standard 3350. This test requires the bolted joints to undergo a vibration of 1780 cycles per minutes for 17 minutes. Normal bolts and nuts loosen less than one minute at this vibration level. The Symmetry Bolt, on the other hand, was certified by JQA, Japan Quality Assurance Organization as maintaining clamp load even after 17 minutes. See Vibration Test Data
Precision and Strength
By using a proprietary thread rolling design based on Japanese Industrious Standards, the Symmetry Bolt thread form is made in production by one thread rolling process. It gives maximum thread strength and ensures a perfect thread that is easily inspected with standard inspection equipment.See gage picture
Significant Cost Saving
Since Symmetry Bolt creates extremely high self-locking effect, it doesn’t require post-installation maintenance. The Symmetry Bolt also can be reused without losing its self-locking power as long as the thread form has not deteriorated. Consequently the Symmetry Bolt represents a remarkable reduction in the total cost equation compared to normal fasteners.