A nut is a nut. The buckle with a round hole in the center of the 6 corners is used in conjunction with the bolt or screwed together with the screw. The function is to tightly connect the mechanical equipment for fastening. Parts must be used in any mechanical manufacturing and production.
Up to now, there are many kinds of nuts: there are nylon lock nuts, flange nuts, and ordinary outer hexagonal nuts. Let's take a look at the specific introduction:
1, Countersunk head inner 6-angle nut - mostly used in power machinery, the main function is the same as the inner 6-angle
2, Nylon lock nut - inlaid with nylon rubber ring in the 6 corners to prevent the thread from loosening, and it is used on strong power machinery.
3. Flange nuts - mainly play the role of increasing the contact surface with the workpiece, mostly used in pipelines, fasteners and some stamping parts and castings.
4. Ordinary external hexagonal nuts are widely used and are common fasteners.

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