Hexagon flange bolts and half-thread carbon steel galvanized screws are a specific type of high-strength, multi-purpose fasteners. Its core functions and features can be summarized as follows.
1. Core functions
High-strength fastening connection: The hexagon head design provides a larger wrench contact surface, which is convenient for applying high torque using standard tools, and is suitable for occasions where strong fastening is required; the integrated design of the flange surface structure with integrated gaskets increases the contact area, disperses the pressure, prevents loosening and protects the surface of the connected parts from extrusion damage.
Local thread optimization: The screw is threaded only in some areas, and the unthreaded bare rod part can enhance the shear resistance, which is suitable for scenes with dynamic loads or vibration.
Corrosion resistance and durability: Provide carbon steel substrates with mechanical strength of 8.8 or above, suitable for load-bearing structures.
Galvanized surface treatment: Form a zinc protective layer, effectively resists atmospheric corrosion, extends service life, and is suitable for outdoor or humid environments.
2. Key application scenarios
Industrial machinery: Parts that need to be disassembled frequently, and flange surfaces reduce the use of gaskets.
Automobile manufacturing: Chassis, suspension system, and other parts with frequent vibration, half-thread design avoids thread stress concentration.
Infrastructure engineering: The galvanized layer adapts to outdoor climates, such as street lamp brackets and fence installation.
3. Comparison of advantages with traditional bolts
Comparison of anti-vibration performance: Hexagonal flange half-thread bolts use flange surface + half-thread, which can achieve double anti-loosening; ordinary full-thread bolts rely on additional anti-loosening measures.
Comparison of installation efficiency: Hexagonal flange half-thread bolts do not require separate gaskets, saving labor hours; ordinary full-thread bolts need to be used with gaskets.
Comparison of shear resistance: The bare rod part of the hexagonal flange half-thread bolt enhances the shear resistance; the thread area of the ordinary full-thread bolt is susceptible to shear damage.
4. Precautions
Selection points: Select the thread length according to the load type, and the thickness of the galvanized layer directly affects the anti-corrosion level.
Restrictions: It is not suitable for extreme chemical corrosion environments. If it is used in chemical corrosion environments, it is necessary to use stainless steel or hot-dip galvanized surface treatment.
Through the above design combination, it is not difficult to see that this screw achieves a balance between strength, anti-loosening and weather resistance, and is an ideal choice for heavy load or vibration i environment.
