Side Lock Folding Hinge Axle
Stainless Steel bicycle Side Lock Folding Hinge Axle - Axles & Pivots
Stainless Steel Side Lock Folding Hinge Axle. Built for OEM bicycle assembly with traceable material and consistent quality.
01 Dimensions & Tolerances
Core dimensions are controlled for repeatable bicycle frame assembly. Custom dimensions, tolerances, and surface finish can be supplied from drawing.
| Parameter | Specification |
|---|---|
| Suitable Hole Diameter | 12.1 mm H7 reamed-hole fit |
| Finish Tolerance | pinaxleh7 (0/-0.018mm)/ project-specific h9 / non-fit dimensions +/-0.1mm |
02 Material & Performance
Material selection is optimized for the target bicycle application with verified mechanical properties and corrosion resistance.
| Parameter | Specification |
|---|---|
| Primary Material | 304 stainless steel (AISI 304) |
| Material Grade / Class | A2-70 (ISO 3506-1) |
| Applicable Standards | ASTM A276 / ISO 3506-1 / ASTM A788 |
| Tensile Strength | 700 MPa |
| Yield Strength | 450 MPa |
| Shear Strength | 420 MPa |
| Hardness | HRB 88-95 (HRC 20-25) |
| Density | 7.93 g/cm³ |
| Process | hot forging + CNC finishing + heat treatment |
| Surface Finish | pickled and polished standard finish / electropolished premium option to ASTM B922 with 120 h salt spray |
03 Application & Compatibility
Designed for bicycle OEMs, assembly factories, and component brands that need repeatable supply with documented QC.
| Parameter | Specification |
|---|---|
| Frame Type | project-specific Aluminum Alloy project-specific |
| Typical Position | project-specific head tubefolding hinge, project-specific |
| Accessory / Mating Part | folding hinge cable-protection area |
| Environment | indoor and outdoor use |
| Compatible Standards | ISO 3506-1 / ISO 4210-10 / ASTM A788 |
| Load Rating | drawing-specific requirement |
| Recommended Torque | none |
| Maximum Torque | none |
| Installation Method | project-specific+project-specific screwlocking |
| Recommended Tool | 5 mm hex key for locking screw and 6 mm hex key |
| Thread Locker | Loctite 243 medium-strength blue threadlocker |
| Installation Position | main frame folding hinge joint |
Installation Steps
04 Quality Assurance
Each production batch can be supplied with traceability records, inspection data, and packaging labels for OEM receiving control. SGS/TUV third-party test reports available on request.
| Test / Inspection | Standard & Criteria |
|---|---|
| Salt Spray Test | 96 hours ISO 9227 NSS |
| Torque Verification | none |
| Hardness Testing | ASTM E18 Rockwell HRB |
| Thread Inspection | ISO 965-2 GO/NO-GO gauge inspection |
| Dimensional Inspection | 100% inspection |
05 Packaging & Ordering
Standard bulk packaging is available for assembly lines. Custom labels, kitting, and retail packaging can be prepared for brand programs.
| Parameter | Specification |
|---|---|
| Standard Pack | 500 pcs/bag |
| Packaging Material | PE resealable bag + corrugated carton |
| Industry Batch Reference | 1,000 pcs/specification for standard parts / 500 pcs/specification for other items |
| Batch Pricing Model | tiered volume pricing with no mandatory MOQ |
| Required Quote Data | Size, material, finish, quantity, drawing if custom |
Send your drawing, sample, or BOM and our team will confirm material, thread fit, finish, packaging, and lead time.
Technical Inquiry
Send drawings or STEP files. Engineering response within 24 hours.
Send DrawingRequest Quotation
Specify quantity, material, finish, and packaging. Quotes in 24 hours.
Get QuoteTrial Order
Start with a small batch to validate fit, finish, and assembly workflow.
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