E Type External Circlip
The E-type external circlip is a fastener with an E-shaped cross-section. Its open E shape provides some flexibility when installed on a shaft. This design allows it to fit shafts of various diameters while providing enough radial force to secure parts effectively.
Made of high-strength stainless steel, it can withstand high pressure and maintain stable performance over a long period. The retaining ring prevents axial movement or slippage through friction with the shaft, thus helping to secure the component.
E-type snap rings are easy to install, quick to remove, and provide accurate positioning. They are widely used in machinery, automotive parts, home appliances, electronic products, and industrial assembly.
Specification

|
Specification |
Outer Diameter |
Inner Diameter |
Thickness |
|
M1.2 |
3.4 |
0.9 |
0.3 |
|
M1.5 |
4 |
1.2 |
0.4 |
|
M2 |
5 |
1.7 |
0.4 |
|
M2.5 |
6 |
2.2 |
0.4 |
|
M3 |
7 |
2.5 |
0.6 |
|
M3.5 |
8 |
3 |
0.6 |
|
M4 |
9 |
3.5 |
0.8 |
|
M5 |
10 |
4.5 |
0.8 |
|
M6 |
12 |
5.5 |
1 |
|
M7 |
14 |
6.7 |
1 |
|
M8 |
16 |
7.5 |
0.8 |
|
M8 |
16 |
7.5 |
1 |
|
M9 |
18 |
8 |
1 |
|
M10 |
19.7 |
9.5 |
1 |
|
M12 |
24 |
10.5 |
1.2 |
|
M15 |
30 |
13 |
1.5 |
Product Picture






Product Features:
* **Anti-loosening Fixation:** The E-type structure securely fixes parts, preventing axial movement.
* **Corrosion Resistance:** Made of high-quality stainless steel, rust-resistant and oxidation-resistant, suitable for humid or corrosive environments.
* **High Elasticity:** The heat-treated stainless steel material provides excellent elasticity and resilience.
* **Easy Installation:** The open design allows for easy installation/removal with snap ring pliers or manually.
* **Durable and Reliable:** Suitable for extended periods of operation, withstanding mechanical vibration and repeated installations.
some statistics about us you must know
Choose the plan that suits you best.
19
+
YEARS OF EXPERIENCE
3000㎡+
FLOOR SPACE
160
+
MACHINERY EQUIPMENT
3500
+
SATISFIED CUSTOMERS

Production Process










As a fastener manufacturer with 19 years of experience, Zeyao boasts a comprehensive production system, ensuring consistent quality and on-time delivery for every fastener.
1. Raw Material
We purchase high-quality metal wire and strictly sort it into batches upon arrival, preparing it for subsequent processing.
2. Cold Heading
A cold heading machine processes the raw material into the basic shape of the fastener.
3. Thread Rolling
Next, threading, also known as threading, is performed to ensure the screw or bolt has a standard, clear profile.
4. Automatic Lathe Processing
Fully automatic lathes are used to further refine parts, including chamfering, turning, and slotting, to enhance dimensional accuracy.
5. Benchtop and CNC Lathe Finishing
For complex or customized fasteners, we use benchtop lathes and CNC machines for further processing to ensure they meet specific customer requirements.
6. Quality Inspection
All products undergo rigorous manual and automated inspections to eliminate defective items and ensure that every shipment meets customer standards.
7. Functional Testing
Some products undergo specialized testing equipment to verify key indicators such as hardness, thread accuracy, and external dimensions.
8. Packaging and Shipping
Products are sorted, packaged, labeled, and boxed automatically or manually, and then neatly stacked in the warehouse for shipment.
Why Choose ZEYAO Fastener Factory?
A Strong Manufacturer: ZEYAO is a fastener factory with 19 years of production experience, specializing in the R&D and manufacturing of customized fasteners.
160+ Production Equipment: Equipped with automated stamping, testing, and packaging production lines, ensuring high efficiency and consistency.
OEM/ODM Customization Services: Supports customization based on drawings and samples, meeting the personalized needs of various industries (automotive, electronics, radiators, drones, new energy, etc.).
Monthly Output Exceeding Ten Million Pieces: As a professional fastener manufacturer, ZEYAO possesses strong production capacity and flexible delivery capabilities.
One-Stop Customization Solution: From design, production, testing, and packaging to shipment, the entire process is completed in our own factory, ensuring controllable quality and stable delivery times.
Contact us now for a quote or customization service:
OEM/ODM customization supported
Free sample evaluation
Fast delivery and one-stop production
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