Generally, bolts connect two materials through light holes, and need to be used in conjunction with nuts. A single bolt part cannot connect. The head is mostly hexagonal, and the individual is generally larger.
The carriage bolt is used in the groove, and the square neck is stuck in the groove during the installation process, which prevents the bolt from rotating and can move in parallel in the groove. The head of the carriage bolt is round, which plays an anti-theft role in the actual connection work.
In addition to carriage bolts, there are other fasteners with excellent market development prospects. This phenomenon is precisely because fasteners are the most widely used and most widely used mechanical basic parts in various industries of the national economy.
In addition, it is compact and lightweight, and the purchase cost is low, which is deeply favored by the vast market. And now my country's domestic fastener industry is adjusted and the pace is accelerated, from the one-sided pursuit of output value in the past, to the transformation of improving quality and brand effect. The transformation from production-oriented to production-service-oriented and the direction of specialization, refinement and specialization has clearly highlighted the concentration of the fastener industry.
