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What to do if the nut cannot be unscrewed

What to do if the nut cannot be unscrewed

1. For "slot" and "cross" head nuts, the screwdriver can stand upright, vibrate at the rear of the screwdriver (pay attention to force), and then twist again. 2. For hexagonal head nuts, they can be directly vibrated (pay attention to the force) and then twisted. If there are no edges, you can manually slot the bolt head with a saw or flat chisel, and then unscrew it with a screwdriver. 3. In the case of sliding or broken threads, a smaller drill bit can be used to drill them off first (pay attention to the verticality of the drill bit), and then an equal diameter tap can be used to repair them.

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