We provide different types of lock nuts with different size based on the mechanics used. Most engineers and mechanics face problem of loosening of nuts. These Lock nuts are used to withstand from vibration or friction in bolts and in equipment which holds it tightly even in a very fast motion and also used to increase the strains of bearings. In some mechanism washer are placed on either side of the bolts, screwed with the nuts for securing the components. Some nuts have nylon sleeve which holds it firmly from dislocating its position.