Stainless Steel Parallel Pins
Product Overview
Stainless Steel Parallel Pins are cylindrical fasteners commonly used to secure the relative position of two or more parts within mechanical or structural assemblies. These pins, also known as dowel pins, are precision-machined for accurate alignment and fit tightly into corresponding holes to create strong, durable fastening connections that resist lateral movement. Due to their high corrosion resistance and tensile strength, stainless steel parallel pins are frequently applied in environments where exposure to moisture, chemicals, or extreme temperatures is a concern.
At Flybear Fastener, we offer an extensive range of precision-engineered Stainless Steel Parallel Pins tailored for various industrial applications.

Product Specifications
| Attribute | Specification |
|---|---|
| Diameter Range | M1.5 – M20 / 1/16″ – 3/4″ |
| Length Range | 4mm – 120mm / 1/4″ – 5″ |
| Pin Type | Solid, Cylindrical, End Rounded |
| Tolerance | ISO h8/h9 or custom tolerances |
| Standards | DIN 6325, ISO 2338, ANSI B18.8.2 |
| Customization | Available per drawing or sample |
Technical Parameters
| Parameter | Description |
|---|---|
| Surface Treatments | Plain, Black Oxide |
| Compliance Standards | ISO, DIN, GB, ANSI, RoHS, CE |
| Hardness | Hardened to 58-62 HRC (as required) |
| Tensile Strength | Up to 800-1200MPa based on material |
Materials and Manufacturing Process
Stainless Steel Parallel Pins are primarily manufactured using stainless steel 304 and 316 due to their excellent corrosion resistance, wear resistance, and mechanical strength. For applications requiring higher strength, hardened alloy steels such as SCM435 or 40Cr are used.
Manufacturing Process:
- Raw Material Inspection and Selection
- Cold Forming or Hot Forging (as per pin size)
- Precision Machining (CNC or centerless grinding)
- Heat Treatment (to enhance hardness and strength)
- Surface Treatment (as per user requirements)
- Final Inspection and Quality Testing
- Packaging and Dispatch
This robust manufacturing cycle ensures consistent quality across every batch produced by Flybear Fastener.
Core Applications of Stainless Steel Parallel Pins
Stainless steel parallel pins are widely used across multiple industries due to their durable fit and precise alignment capabilities. Typical application areas include:
- Automotive transmissions and gear assemblies
- Aerospace component positioning
- Industrial machinery and robotics
- Electronics and electrical enclosures
- Marine and offshore equipment
- Tool and die setups
They are crucial wherever external forces could compromise the alignment of critical components or where repeatable precision is essential.
Product Advantages & Competitive Edge
Featuring Core Keyword: Stainless Steel Parallel Pins
Our stainless steel parallel pins come with the following benefits that differentiate Flybear Fastener from competitors:
- Premium Materials: Utilizing corrosion-resistant stainless steel such as A2 (304) and A4 (316), ensuring durability in harsh environments.
- High Precision Manufacturing: Adhering to tight tolerances (e.g., ISO h8) for perfect fit and optimal load distribution.
- Advanced Surface Treatments: Enhanced anti-rust properties through advanced finishes like black oxide and Dacromet.
- Custom Fabrication Capacity: We offer full-scale customization options based on clients’ samples or CAD drawings.
- Efficient Inventory Management: Prompt dispatch and reliable global shipping from our well-stocked warehouses.
- Responsive Technical Support: Our team is on standby to assist with technical queries, ensuring smooth design integration.
Quality Control and Testing Procedures
To ensure that our stainless steel parallel pins meet or exceed international standards, Flybear Fastener employs a meticulous quality control process that includes:
- Thread Gauges, Micrometers, and Calipers
- Tensile Testing and Load Resistance Measurement Equipment
- Optical Sorting Equipment to ensure dimensional integrity
- Salt Spray (Corrosion) Testing
- Surface Thickness Meters
- Hardness Testers and Metallographic Analyzers
- Torque/Shear Testing Machines
Our facilities follow strict quality management practices compliant with certifications such as ISO9001 and IATF16949. Every delivery exhibits a high pass rate due to 100% inspection protocols.
Selection and Purchasing Guide
Selecting the correct stainless steel parallel pin involves evaluating:
- Pin diameter and length compatibility with application holes
- Material material type based on environment exposure
- Required strength class and surface finish
- Mechanical fit consideration (interference vs. clearance fit)
- Relevant international standard (e.g., DIN, ISO, ANSI)
Our experts at Flybear Fastener are ready to assist you in choosing the best option for your specific use case. Simply share your application needs or drawings for detailed advice.
Conclusion and Company Promotion
At Flybear Fastener, we always uphold the principle of “Quality First, Customer Foremost” and are committed to delivering high-quality fastener products and complete solutions catered to different industry requirements.
Whether you are in automotive, aerospace, construction, marine, or another industry, you can always count on us for dependable fastener performance. Feel free to contact us now for quotes, samples, or professional industry-specific solutions.








