▎ 摘　　要

NOVELTY - A fastener includes a body and an outer covering layer coated on the body. The outer coating layer includes a plurality of metal powder particles, a plurality of nano-zinc particles, a plurality of graphene particles uniformly dispersed, and a method for making the metal powder, the nano-zinc particles, and the graphene particles Adhesives mixed with each other. The outer coating uses the metal particles as a sacrificial anode to prevent the body from being corroded, and uses the dense structure formed by the zinc nanoparticle, with stable grapheneization, can fill structural voids, and is easy to interact with others. The characteristics of organic compounding enable the zinc nano particles and the graphene particles to jointly form a protective mechanism with a good barrier effect, so it can produce an additive and excellent anti-corrosion effect on the body.