Stainless Steel Spring Pins are high-tensile, corrosion-resistant elastic fasteners engineered to compress upon insertion and expand against the hole wall to deliver continuous radial tension and dynamic vibration resistance. Manufactured from premium austenitic and martensitic stainless steels (SUS 304, 316, and 420), these pins offer exceptional shear strength and non-corrosive performance in marine, food processing, medical, and harsh chemical environments. Available in both slotted and coiled configurations according to ISO, DIN, and ASME standards, Anhui Pins Metal delivers precision-engineered stainless spring pins and custom OEM solutions tailored to your exact industrial requirements.
| Parameter | Specification |
|---|---|
| Product Type | Coiled Spring Pin |
| Applicable Standards | ISO 8748 / ISO 8750 / ISO 8751 |
| Duty Type | Heavy Duty / Standard Duty / Light Duty |
| Material | Stainless Steel |
| Diameter | Metric & Inch Sizes / Custom Diameters Available |
| Length | Standard & Custom Lengths Available |
| Design | Multi-Coil Spiral Structure |
| Installation | Press-Fit |
| Spring Action | Radial Elastic Expansion |
| Surface Finish | Natural Stainless Steel Finish / Other Specified Treatments |
| Customization | Custom Diameter, Length, Material Grade & Special Requirements |
Performance Benefits
- Excellent Corrosion Resistance
Made from stainless steel materials, these pins provide enhanced resistance against moisture, oxidation, and corrosive environments, making them suitable for demanding applications.
- Reliable Retaining Performance
The spring design allows the pin to compress during installation and expand inside the hole, creating secure retention and stable fastening performance.
- High Durability & Long Service Life
Stainless steel construction provides good strength, wear resistance, and durability for repeated assembly and long-term operation.
- Flexible Custom Options
CHN Pins supports customized production based on customer drawings, including dimensions, material grades, finishes, and special requirements.
Stainless Steel Grade Selection
SUS304
SUS304 is suitable for general industrial applications where the spring pin requires good corrosion resistance and stable elastic performance. It is commonly selected for equipment exposed to normal humidity, water, and indoor or general outdoor conditions.
SUS316
SUS316 provides higher resistance to chloride-containing environments than SUS304. It is more suitable for marine equipment, chemical-processing environments, coastal applications, and assemblies exposed to more aggressive corrosive conditions.
Custom Stainless Spring Pin Solutions
- CHN Pins offers flexible customization for spring pins to meet specific assembly requirements across different industries. Whether you need modified dimensions, special materials, or application-specific designs, our engineering team can provide manufacturing solutions based on your requirements.
- From initial drawings and prototype development to full-scale production, we work closely with customers to ensure the final products match their assembly needs and project specifications.
Custom Options Include：
- Non-standard sizes and configurations
- Customer-specified materials
- Special dimensional requirements
- Customized packaging solutions
- OEM production based on drawings or samples
Manufacturing Process & Quality Control
Stainless Spring Pins are produced through controlled forming and inspection processes to maintain consistent spring geometry and dimensional performance.
- Coil Forming
Stainless steel strip is formed into the required multi-coil configuration, with control of the coil geometry and finished pin dimensions.
- Heat Treatment & Stress Relief
Where required by the material and specification, controlled treatment is applied to achieve the required mechanical condition and elastic recovery.
- Dimensional Inspection
Critical dimensions such as pin diameter, length, coil profile, and end condition are checked against the approved specification.
- Final Inspection
Finished pins are inspected for dimensional conformity, surface condition, material requirements, and batch consistency before shipment.
FAQ
What information do you need for a custom order?
To provide an accurate solution, we recommend sharing product drawings, required dimensions, material specifications, quantity, application details, and any special requirements.
Which stainless steel materials are available?
Common material options include SUS304 and SUS316 stainless steel. The suitable material depends on factors such as operating environment, corrosion exposure, and mechanical requirements.
Can you produce non-standard sizes?
Yes. We manufacture both standard and customized products according to customer specifications, including special dimensions, tolerances, and design requirements.
How do you ensure consistency for large volume orders?
Production processes are controlled through material verification, dimensional inspection, and final quality checks to maintain consistent performance across production batches.
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