A cylindrical rod with continuous threads running from one end to the other. This structure enables flexible adjustment of connection tightness over a wide range. Compared with partially threaded bolts, the full-thread structure ensures more uniform stress distribution, significantly improving connection reliability and the ability to withstand large axial tensile loads.
A component with internal threads matching the bolt’s threads. Used in conjunction with the fully threaded bolt, it creates axial clamping force through thread engagement, allowing secure fixation of two or more connected elements.
Placed between the nut and the connected element. It increases the contact area of the connected parts, reduces surface pressure, and prevents damage when tightening the nut. It also performs anti-vibration protection and auxiliary sealing functions.
Full threaded bolt assemblies are usually made of carbon steel, stainless steel, and other materials. Carbon steel assemblies are characterized by low cost, and after corresponding heat treatment (quenching, tempering, etc.), they achieve high strength and hardness but have relatively low corrosion resistance. Stainless steel assemblies offer excellent corrosion resistance and are suitable for environments with high requirements for moisture and chemical resistance, such as the chemical industry, food processing, marine construction, etc.