The Spec Of Insert Nut :
Made out of zinc alloy, it offen to be put inside the MDF board, or other wooden plate, you usually use it with screws, widely used in wooden furniture industries steel one is also available, but a bit different in appereance, the cost is almost same with zinc alloy one these years.
1. Diameter: M4-0.7; M5-0.8; M6-....

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The Spec Of Insert Nut :
Prevailing torque bearing nut adds the special tightly-locking ring of spring steel according to the engineering principles. When used, the ring of spring steel clip and presses into the solt. It's effects of shockproof and prevention of loosening are 100%, and it would not affect the thread of the screw and the ti....

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