This inner hexagon screw is made of high-strength carbon steel and has excellent tensile strength and corrosion resistance after special processing. Black oxidation surface treatment is not only beautiful and elegant, but also can effectively prevent corrosion and prolong service life. A variety of specifications are available, suitable for various mechanical assembly and fastening requirements. This article will introduce the features and application scenarios of this inner hexagon screw in detail to help you better understand and select this high-performance fastener.