Stainless Steel Spring Pins, also known as Stainless Steel Slotted Spring Pins or Elastic Cylindrical Pins, are hollow cylindrical fasteners with an axial slot and chamfered ends. Designed with elastic deformation capability, they provide reliable positioning, fastening, and connection between mechanical components. Due to their excellent corrosion resistance and flexible locking performance, stainless steel spring pins are widely used in machinery, automotive, electronics, construction, and industrial equipment applications.
Product Types
Slotted Spring Pins:Available in Light Duty and Heavy Duty versions. Light duty types feature thinner walls and smaller chamfers, while heavy duty types have increased wall thickness and larger chamfers to accommodate different shear load requirements.
Coiled Spring Pins:Available in Light Duty, Standard Duty, and Heavy Duty designs. Manufactured through a coiling process, these pins provide uniform elasticity and balanced shear strength distribution.
Toothed Spring Pins:Featuring an interlocking wave-shaped profile along the axial slot area, toothed spring pins provide enhanced retention force and are suitable for applications requiring higher positioning accuracy and improved gripping performance.
Technical Specifications
| Standard | Specification | nominal diameter | Material | Custom Capability |
| ISO | ISO 8752 | φ1-φ50 | steel&Austenitic stainless steel&Martensitic stainless steel | ✓ Available |
| ISO | ISO 13337 | φ2-φ50 | steel&Austenitic stainless steel&Martensitic stainless steel | ✓ Available |
Custom Manufacturing Capability
| Custom Item | Available Options |
|---|---|
| Diameter | Customized According to Drawing |
| Length | Customized Requirements Supported |
| Tolerance | Precision Tolerance Control Available |
| Hardness | Customized Hardness Range |
| Surface Finish | Customized Surface Treatment |
Stainless Steel Spring Pins Type
Applications
- Automotive Industry
Used in automotive assemblies, engine systems, and transmission components requiring secure positioning and vibration resistance.
- Industrial Machinery
Applied in mechanical equipment, heavy machinery, and production systems for reliable fastening and alignment.
- Automation & Equipment Manufacturing
Suitable for automated systems, fixtures, and precision equipment where stable and repeatable assembly is required.
- Outdoor & Marine Applications
Widely used in environments exposed to moisture or corrosion risks, benefiting from stainless steel material properties.
Manufacturing Process
Custom Stainless Steel Spring Pins manufacturer
Martensitic stainless steel & Steel Solid Precision Stainless Steel Spring Pins - Custom, Metric & Inch
Anhui Pins Metal Products Co., Ltd. specializes in manufacturing precision metal fasteners, offering a comprehensive range of products including Dowel Pins, Slotted Pins, Spring Pins, Coiled Spring Pins, Washers, Retaining Rings, Compression Limiters, and Trim Clips. Our high-quality fastening solutions are widely applied in automotive systems, new energy applications, industrial equipment, electrical components, furniture hardware, and various mechanical assembly fields.
Related Products
FAQ
What is the difference between stainless steel and carbon steel spring pins?
Stainless steel spring pins offer excellent corrosion resistance and are ideal for moisture, outdoor, and chemically exposed environments. Carbon steel spring pins are commonly selected for general industrial applications where higher mechanical strength and heat-treated performance are required.
Are spring pins suitable for applications with vibration or impact loads?
Yes. The flexible slotted design allows the pin to maintain constant radial force inside the hole, helping provide reliable retention in environments with vibration, shock, and repeated loading.
Can you provide both standard and customized spring pin solutions?
Yes. We supply standard sizes as well as customized options based on customer drawings, specifications, or unique assembly requirements.
Which industries use spring pins?
Spring pins are widely applied in automotive components, machinery, automation equipment, and various industrial assembly applications where secure fastening and reliable positioning are required.
How are spring pins installed?
Spring pins are installed by pressing them into a properly sized hole. After compression, they expand to create a secure interference fit, providing stable retention without the need for additional fastening elements.
Need a Custom Slotted Spring Pins?
Share your drawings or requirements with our engineering team. We provide precision metal fasteners with reliable quality and OEM support.
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