As a kind of threaded fastener, the pre-assembled internal thread of wire thread insert has obvious advantages compared with ordinary thread:
1. Extended service life: Because the wire thread insert is made of stainless steel, it has high hardness, which increases the thread life of the softer base member by tens to hundreds of times; increases its strength and avoids tripping and random buckling.
2. Enhance thread connection strength: used in soft low-strength alloy materials such as aluminum and magnesium, it can effectively enhance the connection strength of threads. The maximum tensile strength of ordinary internal threads of aluminum profiles is 1394N, and The internal thread of the pre-installed wire thread insert has a minimum tensile strength of up to 2100 N.
3. Increase the stress surface: It can be used for thin parts that require strong connections but cannot increase the diameter of the screw hole.
4. Improve connection conditions and increase the load-bearing capacity and fatigue resistance of threaded connections: Since wire thread inserts are elastic fasteners, using wire thread inserts can eliminate the pitch and thread between the screw and the screw hole. The shape deviation makes the load evenly distributed, thereby improving the load-bearing capacity and fatigue resistance of the threaded connection.
5. Anti-rust: The characteristics of the wire thread insert material itself and its extremely smooth surface will prevent the mating matrix from rusting when used in harsh environments such as moisture and corrosion, and avoid the risk of damage due to threaded holes. The loss of the expensive base body due to rust and inability to disassemble and replace it. It can be used in chemical industry, aviation, military equipment and other occasions that require high insurance coefficients.
6. Wear resistance, heat resistance, and corrosion resistance: Due to the extremely high surface finish of the wire thread sleeve, it can effectively reduce the friction between the internal and external threads, and the material itself is even more resistant to high temperatures and corrosion. characteristics. It can be used in parts that are frequently disassembled and installed and screw holes that are frequently rotated to extend their service life.
7. Anti-seismic and anti-loosening: The special structure of the locking screw sleeve can lock the screw in the screw hole without loosening in strong vibration and impact environments. Its locking performance Better than other locking devices. It can be used in instruments, precision and valuable power equipment, as well as aerospace, aviation, military equipment and other occasions that require high insurance coefficients.
8. Easy maintenance: When thread processing errors occur or damaged internal threads are repaired, the use of wire thread sleeves can bring the base body back to life, and the original screws can be used, which is fast and economical. To give a simple example, diesel engine bodies, textile parts, various aluminum machine parts, lathe tool tables, etc. will be scrapped due to damage to a screw hole. As long as it is re-tapped and a threaded sleeve is installed, the scrap piece will be brought back to life.
9. Conversion: Use wire thread inserts to convert metric ←→imperial ←→international standard threaded holes. It is very convenient, fast, economical and practical, and is suitable for any imported and exported products.