About Us
The series of screw sleeves and supporting installation tools independently developed by the company are combined with the development trend of the industry and market demand, and continue to carry out technological innovation and R & D capacity expansion, and the product cost performance is better than that of peer products.
Changzhou Liyi Fastening Technology Co., Ltd. is a lightweight fastening technology solution provider. The company's main three product series: lightweight fastening product series, precision machining product series, imported brand bearing series.
Products are widely used in new energy vehicles, wind power, photovoltaic, energy storage, military, aerospace, traditional machinery and other industries. It has now become a number of new energy vehicle brands and Oems secondary suppliers, such as: BYD, SAIC, Geely, Chery and so on.
Our Products
We are the industry leader, providing you with the most stable and reliable product supply and solutions.
Wire screw sleeve series
Wire threaded insert is coiled by the coil of diamond-shaped cross-section, thus forming a standard internal thread, embedded in the threaded hole of plastic, aluminum alloy, copper, cast iron, wood and other soft materials, to achieve the effect of repair and enhancement of the internal thread, realizing high-strength connection of low-strength materials. It has good tensile and torsional properties, and can also convert metric threads to British or American threads freely. At present, the product is widely used in aerospace, instrumentation, rail transit, military, new energy vehicles and other industries. Unilee also provides supporting electric installation tools.
Core rivets series
Rivet series include open end rivet, closed end rivet, drum type rivet, maolock, lantern rivet, Hem-Fix rivet, etc. The material are various, including stainless steel, aluminum, iron and so on. Our rivets are of reliable quality and available in stock.
Riveted nut series
Rivet nuts series have different types of products, including flat head, countersunk head, reduced head, close end, knurled body, round body, full hex body, semi-hex body, inner-hex body, lantern type, etc. The materials are various, such as carbon steel, stainless steel, aluminum, copper.
Here you will get the perfect solution for all your industry needs and a stable and reliable product supply for every scenario.
Our standards
Industries We Serve!
Aerospace fasteners require extremely high tensile strength and fatigue resistance. Our products reduce their weight as much as possible while ensuring performance, and ensure the stability of the engine in high-speed rotation and high temperature environment, but also to prevent loosening or damage due to vibration during flight.
The surface treatment of fasteners in the oil and gas industry is one of the key manufacturing processes, which gives the products anti-corrosion properties and beautiful appearance, and can also improve the special properties of fasteners, such as outdoor weather resistance, corrosion resistance, wear resistance, decoration, insulation, etc., to meet the special environmental needs of the industry and provide a safe and reliable guarantee for harsh environment work.
The fasteners of the automotive industry have to bear a very large load, so the strength and stiffness requirements must meet the design requirements of the automobile. The size and precision of fasteners are crucial to the assembly of automobiles, and they must have corrosion resistance and ensure their durability and reliability to ensure the safety and stability of long-term use of automobiles.
Photovoltaic industry
Wind power industry
Energy storage industry
The photovoltaic industry has attracted global attention because the energy source of photovoltaic power generation – solar energy, is clean, safe, renewable energy, photovoltaic power generation process will not pollute the environment, will not destroy the ecology. We have also prepared corresponding fastener solutions for the photovoltaic industry, our products can cope with the harsh environment, can meet the needs of various users.
We provide fastener solutions for the wind power industry, including a variety of fastener products, such as wind power hex, outer hex, high-strength fasteners, locking nuts, washers, cylindrical pins, stoppers, plugs, oil labels, combination fastener products.
In the application of wind power industry, we have rich experience and technical accumulation, and have participated in a number of wind power industry projects, such as: host, tower barrel, gear box, reducer, frequency converter, tensioning, main bearing and wind energy storage projects.
We adhere to the concept of innovative environmental protection, strengthen cooperation with the energy storage industry, launch high-quality fastener products that meet the needs of the industry, and provide reliable technical support and after-sales service. In the future, we will continue to explore and innovate to provide more perfect solutions for the development of the energy storage industry.
Need more performance requirements and parameters for fasteners? We are the experts!
LIGHTWEIGHT FASTENING TECHNOLOGY SOLUTION PROVIDER