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Self-locking Screws

Self-locking Screws loosing prevent with its special thread or product design. Even in the most extreme weather, the screws can remain fully tightened.

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Introducing Self-Locking Screws - The Ultimate Solution to Secure Your Assemblies!


If you are looking for reliable, high-quality screws that are easy to install and ensure a tight and secure fit, look no further than Self-locking Screws. These innovative fasteners are designed to provide an unbeatable locking mechanism that prevents vibrations, shocks, and other external impacts from loosening your assemblies.


Our self-locking screws are made from premium-quality materials, including stainless steel, aluminum, and brass. This makes them durable, resistant to corrosion, and able to withstand extreme temperatures, humidity, and other environmental conditions.


But what sets our self-locking screws apart is their unique design, which includes a built-in locking mechanism that enhances their grip and prevents loosening. Whether you need to secure a vehicle engine, an aircraft component, or a delicate electronics part, our self-locking screws are the ideal solution to ensure their uninterrupted performance and longevity.


Here are some of the key benefits of choosing our Self-locking Screws:


1. Easy to Install - Our self-locking screws are designed for easy and fast installation, reducing downtime and labor costs.


2. Durable and Long-Lasting - Made from premium-quality materials, our screws are built to last and withstand harsh environmental conditions.


3. Versatile - Our self-locking screws are suitable for a wide range of applications, from automotive and aerospace industries to electronics and medical devices.


4. Reliable - With a high-quality locking mechanism, you can trust our self-locking screws to maintain a tight and secure fit, even under high pressure and vibrations.


5. Enhanced Safety - By preventing assemblies from loosening, our self-locking screws contribute to safer and more reliable products, minimizing the risk of accidents and failures.


At our manufacturing facility in China, we apply strict quality control and testing procedures to ensure that every Self-locking Screw we produce meets the highest standards of performance and reliability. We also offer competitive pricing and flexible order quantities to meet the needs of our customers.


So whether you are a merchant looking to source self-locking screws for your customers or an industrial company searching for reliable fasteners for your products, look no further than our Self-locking Screws. Contact us today to learn more about our products and how we can fulfill your fastening needs.



Self-locking Screws refer to screws that do not need to be used with nuts. Triangular self-tapping screws are also called  triangular teeth screws. It means that the tail of the self-tapping screw is triangular, and the thread is triangular. It belongs to a special category of self-tapping screws. Compared with ordinary tooth screws, triangular teeth can reduce the resistance in the process of locking, can self-tapping, save nuts, etc., and also save your time.


Self-locking Screws are prevented from loosening by their special thread or product design. The screws remain fully tightened even in the most extreme weather. So far, they are available in a variety of different materials to suit different industrial applications. We can customize it according to your actual needs. The head shape, material, and surface treatment process of the screw can be processed according to your drawings.

Product Details

● Product Type: Self tapping screw

● Product Name: Self-locking Screws

● Size: ST2.9-ST9.5;Special size can be enquired and supported

● Product Executive Standards: ANSI, DIN, ISO, GB; or Per customer’s drawing

● System of Measurement: Metric/Inch

● Head type: Button Head; Pan Head; CSK Head; Truss Head; Round Head; Cheese Head;Hexagon head; etc

● Material: Low carbon steel / medium carbon steel / alloy steel/Stainless steel

● Grade: Case harden-- Surface hardness min450HV

core hardness 270 ~ 390HV/290~370HV


● Support non-standard customization

Quality Control

All inspectors are skilled with international certificates.

100% inspection of finished sprouts before shipment.

Advanced and complete testing and inspection equipment: NDT, metal Microscope, impact tester, hardness tester...

Regular training for inspection staff


Customization process


Our advantage

1. We have nearly 20 years of experience in hardware processing.

2. We offer OEM custom service, produce and process products according to your drawings and requirement.

3. All kinds of surface treatment available, such as anodizing, power coating, painting, polishing, electrophoresis, plating. etc.

4. Our professional R&D and QC team can strictly control the product quality to meet your requirement.



Why choose us?

  • We provide fast and reliable shipping for our Bolts and Screws products to customers worldwide.
  • Our staff are usually in the spirit of 'continuous improvement and excellence', and while using the top-quality high-quality items, favorable value and superior after-sales services, we try to acquire each and every customer's belief for Self-locking Screws.
  • We offer flexible payment options for our Bolts and Screws products to accommodate the needs of our customers.
  • Our corporate values are to create value for customers, create value for employees, and create value for society.
  • We have a rigorous quality control process to ensure the highest standard of our Bolts and Screws products.
  • Over the years, our company insists on the quality of survival, innovation and development, to the credibility of the first concept of control in the industry.
  • Our competitive pricing and superior quality Bolts and Screws products make us a preferred choice for many customers worldwide.
  • The company always adheres to the tenet of good faith management, and sincerely welcomes new and old customers to come and consult!
  • We always go above and beyond to exceed the expectations of our customers with our Bolts and Screws products and services.
  • We are customer-centric, continuously create and provide value for customers, and ensure the continuous success of customers!

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