Thread Insert

Wanluo’s China Thread Inser can be embedded into pre-drilled threaded holes of aluminum alloy, magnesium alloy, plastic and low-hardness wood and metal materials to form high-strength, standard and wear-resistant internal threads. Effectively improving the connection strength and fatigue resistance of soft base threads, it is a core auxiliary fastener widely used in aerospace, mechanical manufacturing, automotive parts and precision equipment assembly.

Precision Winding Molding & Elastic Self-Locking Process Technology

This thread insert is made of high-quality 304/316 stainless steel or high-strength alloy steel wire, manufactured through precise constant-diameter winding and heat treatment shaping process. The spiral structure is uniform and neat with smooth tooth surface and accurate pitch, perfectly matching standard metric and inch threads. The product has unique elastic compensation performance, which can eliminate thread gap after installation, realize tight self-locking fit and prevent loosening caused by equipment vibration. After special surface finishing treatment, the insert features low friction coefficient, wear resistance and excellent corrosion resistance. It can effectively protect the base thread, disperse fastening stress, avoid thread cracking and slipping of soft materials, and significantly extend the service life of threaded holes and equipment components.

Product Parameter

Thread Reinforcement Performance & Precision Equipment Matching Advantages

1. Professional thread repair and reinforcement function. The thread insert perfectly solves the problem of invalid connection caused by thread slipping, tooth breaking and hole damage of low-hardness materials. It can repair damaged threaded holes in situ without replacing parts, greatly reducing equipment maintenance and replacement costs.

2. Elastic self-locking anti-loosening structure. The spiral elastic structure provides continuous uniform pretightening force, eliminates assembly gaps between threads, and effectively resists loosening and displacement caused by long-term mechanical vibration and temperature changes. It ensures stable connection of precision equipment for a long time.

3. Significantly improved connection strength. After embedding the thread insert, the local strength of soft material threaded holes can be increased by 3-5 times, avoiding thread cracking and stripping during high-torque locking. It optimizes the stress distribution of threaded connection and improves the overall structural stability.

4. Excellent wear and corrosion resistance. Made of high-quality stainless steel material with smooth polished surface, it reduces thread friction and abrasion during repeated disassembly and assembly. The anti-corrosion passivation treatment adapts to various humid and corrosive working environments, extending the service life of threaded components.

5. Strong universality and easy construction. Standard thread specifications are compatible with all standard bolts and screws. The installation process is simple and efficient, suitable for batch assembly of factory production lines and on-site maintenance and repair of engineering equipment, with high cost performance.

FAQ

Q1: What is the main function of a thread insert? 

A1: It is mainly used for reinforcing low-strength substrate threads and repairing damaged threaded holes. It effectively prevents thread slipping and loosening, improves connection strength and solves the problem of unstable fastening of aluminum, plastic and other soft materials.

Q2: Will the thread insert affect the original thread matching accuracy? 

A2: No. All inserts are processed with high-precision winding and strict tolerance calibration. After installation, they form standard internal threads, which are perfectly matched with standard fasteners without jamming or loose fitting.

Q3: What materials are suitable for installing thread inserts? 

A3: It is widely applicable to low-hardness and easy-to-damage materials such as aluminum alloy, magnesium alloy, copper, plastic, resin and wood, and can also be used for thread repair of cast iron and steel parts.

Q4: Does the product support repeated disassembly and use? 

A4: Yes. The stainless steel thread insert features high wear resistance and stable structural performance. It can withstand repeated disassembly and assembly without thread deformation or tooth damage, ensuring long-term stable use.

Q5: Can special non-standard thread inserts be customized? 

A5: We support customized non-standard pitch, special length, ultra-precision tolerance and special material thread inserts to meet personalized matching needs of special equipment and engineering projects.