Stainless Steel Square Key
Product Overview
The Stainless Steel Square Key is a crucial machine component used to connect rotating elements such as gears and pulleys to shafts, ensuring torque transmission while preventing relative motion. Its square profile enables optimal contact with both the shaft keyway and hub keyway, delivering high mechanical reliability. Primarily manufactured from high-grade stainless steel, this key offers excellent resistance to corrosion and wear, making it ideal for machinery operating in aggressive environments or requiring long service life.
At Flybear Fastener, we specialize in precision-engineered Stainless Steel Square Keys that meet and exceed international standards.
Product Specification Table
| Specification | Details |
|---|---|
| Size Range | 3 mm to 25 mm (Width) |
| Length Range | 10 mm to 200 mm |
| Tolerance | ISO H9 or DIN 6885 norm |
| Shape | Square |
| Keyway Fit | Parallel tolerance with shaft/hub |
| Packaging | Carton + Pallet or Custom Packaging |
Technical Parameters
| Parameter | Details |
|---|---|
| Strength Grades | A2-70, A4-80 |
| Surface Finish | Plain, Passivated |
| Standards | DIN 6885, ISO R773, GB/T 1096 |
| Certifications | RoHS, CE, ISO9001 compliant |
| Magnetic Properties | Non-magnetic (depending on grade) |
Material Selection and Manufacturing Process
Most Stainless Steel Square Keys are made from AISI 304 or 316 stainless steel, offering excellent resistance to corrosion, especially in marine and outdoor environments. A4-80 (316-grade) keys are particularly suitable for highly corrosive conditions, while A2-70 (304-grade) is a more economical option with good general-purpose corrosion resistance.
The production flow at Flybear Fastener typically includes:
- Raw Material Inspection
- Cold Drawn Steel Bar Cutting
- CNC Precision Cutting into Square Key Shape
- Deburring and Chamfering
- Heat Treatment (if required)
- Surface Finishing (Polishing, Passivation)
- Dimensional Inspection & Quality Control
- Packaging for Shipment
Applications of Stainless Steel Square Key in Industry
Stainless Steel Square Keys are widely used across multiple industries due to their tensile strength and adaptability. Some typical applications include:
- Industrial gearboxes and motors
- Agricultural machinery
- Marine propulsion systems
- Wind turbines
- Pumps and compressors
- Railway and rolling stock
- Heavy-duty construction equipment
Key Advantages of Stainless Steel Square Key
Core Keywords Highlight: Stainless Steel Square Key Advantages
When choosing a Stainless Steel Square Key from Flybear Fastener, the benefits include:
- ↠ Superior Material Quality:
High-grade stainless steel offers excellent resistance to rust, oxidation, and chemical wear. - ↠ Precision Engineering:
Manufactured with tight tolerances and smooth edges for better fit and reduced vibration within mechanical systems. - ↠ Customization:
We can manufacture according to customer drawings or specific material/length requirements. - ↠ Compatibility with Global Standards:
Conforms to ISO and DIN metrics, suitable for export and replacement markets. - ↠ Bulk Availability:
Stock sizes ready for immediate shipment, reliable inventory ensures zero downtime for your applications. - ↠ Professional Support:
Comprehensive pre-sales and after-sales support, with technical drawings, consultation, and installation guidance.
Inspection & Quality Control
Quality is at the core of our manufacturing philosophy. The entire production batch of Stainless Steel Square Keys at Flybear Fastener undergoes stringent inspections that include:
- Thread gauge verification (where applicable)
- Dimensional Inspection using Vernier, Micrometer, and Optical Comparator
- Salt Spray Corrosion Test (for surface finish assurance)
- Spectrometric Analysis for material verification
- Hardness Testing using Rockwell and Brinell methods
- 100% batch-level inspection and traceability
- Compliance with ISO9001 and IATF16949 quality management systems
Selection and Purchasing Guide
Choosing the correct Stainless Steel Square Key depends on factors such as torque requirements, shaft diameter, environmental exposure, and standard compliance. Always refer to design specifications or consult our technical team before ordering.
- For marine or high-humidity environments: Choose A4-80 material.
- For standard indoor applications: A2-70 is sufficient and cost-effective.
- Ensure size compatibility with keyway on both shaft and mating part.
- Custom length or chamfer requests can be accommodated.
You may browse specific sizes or request custom specifications from our online catalog.
Final Takeaway: Your Trusted Fastening Partner
At Flybear Fastener, we are committed to delivering high-quality fastener products backed by engineering expertise and consistent quality. Whether your application is standard or custom, we provide one-stop solutions to match your fastening needs.
We invite you to contact us to discuss your project, access our product library, or get a competitive quotation with technical consultation.
We always adhere to the principle of “Quality First, Customer Foremost,” striving to be your reliable and long-term fastening solution provider.
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