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The Principle of Speed Nut Fastenings
Speed nuts are the only fastening devices that provide a compensating thread lock and a self-energising spring lock. Two distinct forces are exerted on the screw
as the speed nut is tightened.
First, a compensating thread lock, the two arched prongs moving inward to engage and lock against the flanks of the screw thread. These free-acting prongs
compensate for tolerance variations.
Second, a self-energising spring lock, created by the compression of the arch in both the prongs and base, as the screw is tightened. The combined forces of the
thread lock and spring lock definitely eliminate vibration loosening.
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