(1) Fasteners subjected to axial force, the threads are destroyed and the bolts are pulled off.
(2)Fasteners subject to radial force, the bolt is sheared off, and the bolt hole is beaten into an ellipse.
(2)Fasteners subject to radial force, the bolt is sheared off, and the bolt hole is beaten into an ellipse.
The root cause of bolt breakage - loosening
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