A locknut is a nut, a part that is screwed together wit […]
A locknut is a nut, a part that is screwed together with a bolt or screw for fastening. It is a component that all production machinery must use. There are many types of locknuts. Our common ones are the national standard and the British standard. American standard, Japanese standard locknut.
According to different materials, locknuts are divided into carbon steel, high strength, stainless steel, plastic steel and other major types. According to the product attributes corresponding to different national standards, they are divided into ordinary, non-standard, (old) national standard, new national standard, American system, British system, German standard. The size is different, and the thread is divided into different specifications. Generally, the national standard and the German standard are represented by M (such as M8, M16), and the American and British systems are represented by fractions or # (such as 8#, 10#, 1/4, 3 /8) Fasteners.
The locknut is a part that connects the mechanical equipment tightly. It can be connected together through the inner thread, the same specification locknut and screw, for example, the M4-0.7 locknut can only be matched with the M4-0.7 screw (in In the lock nut, M4 means that the inner diameter of the lock nut is about 4mm, and 0.7 means that the distance between the two threads is 0.7mm); the same is true for American products.
The anti-loosening effect of the anti-loosening nut mainly depends on the interaction force between the nut and the bolt engaging thread. At present, there are many ways to improve the interaction force between meshing threads, such as the improvement of the thread structure of the Spiro nut, the nylon roughening of the nylon nut, and the surface treatment of the thread.