Screw-Lock Insert

Screw-Lock Insert is a threaded insert with anti-loosening functionality. Compared to standard inserts, it features a self-locking section in its structure, achieving thread locking through local deformation or specialized thread profiles. It effectively prevents loosening under vibration and impact conditions. After installation, it forms high-strength, anti-loosening internal threads in soft materials or damaged threaded holes without requiring additional lock washers or adhesives, offering a reinforced and secure thread connection solution for equipment assembly.

PREV：Tangless Thread Insert NEXT：Fine Pitch Wire Thread Insert

Product Features

Active anti-loosening structure: Features an elastic self-locking section that generates locking force through local thread deformation, resisting high-frequency vibration without additional anti-loosening components.
No extra installation cost: Compatible with standard insert installation processes, allowing direct replacement and upgrading without adjusting existing assembly procedures.
Thread strength upgrade: Once embedded in soft base materials, it significantly improves thread load-bearing and impact resistance, preventing thread stripping or disengagement.
Multiple material compatibility: Supports stainless steel, carbon steel, and other base materials, with optional coatings to adapt to complex working conditions.
Quick thread hole repair: Damaged threads can be repaired directly with the insert without replacing the parent material, reducing maintenance costs.

Applications

Rail Transit Equipment: Thread fastening for high-frequency vibration components such as train carriages and bogies, ensuring connection stability at high speeds.
Construction Machinery: Thread reinforcement for structural components of outdoor machinery, such as excavators and loaders, coping with shocks and impact loads.
Aerospace Precision Components: Critical thread connections in aircraft engines and onboard equipment, meeting high reliability and anti-loosening requirements.
New Energy Wind Power Equipment: Thread fastening for wind turbine towers and hubs, resisting strong winds and long-term vibrations.
High-End Electronics: Anti-loosening fastening for vibration-sensitive components in drones and precision measuring instruments, ensuring operational accuracy.

Company Profile

Dongtai Jinzhize Metal Products Co., Ltd.

Dongtai Jinzhize Metal Products Co., Ltd. is a specialized manufacturing facility dedicated to threaded connection products for the automotive and aerospace sectors. We primarily produce Helical Wire Inserts, Self-Tapping Inserts, Key Locking Inserts, Threaded Adapters, Oil Plugs, as well as matching installation taps and tools.

Established in 2015, the company operates from a 10,000-square-meter-owned manufacturing plant equipped with hundreds of machine tools and automated production systems. Through years of development, we have built an experienced team of design, development, and production specialists, complemented by a rigorous quality management system and comprehensive after-sales service mechanism.

Our products are widely utilized in the automotive industry (including engines and transmissions for both passenger and commercial vehicles), the aerospace industry, and rail vehicle manufacturing.

With an annual output value of 153 million RMB in 2024, we possess the capability for a large-scale, stable supply. We are committed to providing customers with highly consistent, traceable products and reliable service support.