全金属锁紧螺母

All  Metal  lock nuts DIN980-V  / ISO 7042 CL8 & CL10 ,We all adopt 35 # steel or 45 # steel to be processed and formed by cold heading machine, then tap the teeth, heat treatment and tempering to grade 8 or 10, and finally galvanize or blackenIt is widely used in mining machinery, medical machinery, agricultural machinery, food machinery and automobile industry. The characteristic of this product is to achieve the locking effect through thread deformation and matching with appropriate bolts, so as to prevent the nut from falling off during use.