Qingdao Sande Technology Co., LTD
| Payment Terms | D/P,T/T,Western Union |
| Supply Ability | 10000PCS/month |
| Delivery Time | 30 days |
| Packaging Details | Wooden case |
| Process | Turning and milling |
| Surface Roughness | Ra1.6-3.2 |
| Applications | suitable for various industries |
| Capacity | 10, 000pieces per month |
| Packing | Carton, wooden box |
| Lead Time | 30-40days |
| Brand Name | Qingdao Sande Tech Co.,Ltd |
| Model Number | OEM |
| Certification | ISO, DIN, AISI, ASTM, BS, JIS, etc. |
| Place of Origin | Qingdao, China |
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Product Specification
| Payment Terms | D/P,T/T,Western Union | Supply Ability | 10000PCS/month |
| Delivery Time | 30 days | Packaging Details | Wooden case |
| Process | Turning and milling | Surface Roughness | Ra1.6-3.2 |
| Applications | suitable for various industries | Capacity | 10, 000pieces per month |
| Packing | Carton, wooden box | Lead Time | 30-40days |
| Brand Name | Qingdao Sande Tech Co.,Ltd | Model Number | OEM |
| Certification | ISO, DIN, AISI, ASTM, BS, JIS, etc. | Place of Origin | Qingdao, China |
| High Light | Stainless Steel U Pins ，CNC Machined U Pins ，Flat Head Grooved Clamping Pins | ||
Precision CNC Machined Stainless Steel U-Pins - Flat Head Grooved Clamping Pins
Product Overview
Our high-precision stainless steel U-pins are CNC machined for secure clamping, alignment, and fastening in demanding industrial applications. Featuring a flat head design and grooved ends, these pins provide excellent retention, vibration resistance, and easy installation in machinery, automotive, and assembly systems.
Key Features & Benefits
✔ Premium Material
Stainless Steel 304/316 – Corrosion-resistant, high strength, and durability
Optional 17-4PH (Precipitation Hardened) for extreme wear resistance
✔ Precision CNC Machining
Tolerances: ±0.01mm (Standard) | ±0.005mm (High Precision)
Grooved Ends – Ensures secure retention with snap rings or clips
Flat Head Design – Prevents rotation and provides a flush surface
✔ Dimensions & Customization
Diameter: 3mm–25mm
Pin Length: 10mm–150mm
U-Bend Radius: Customizable
Surface Finish: Ra 0.4μm–1.6μm (Mirror Polish Available)
✔ Secondary Processing
Passivation – Enhanced corrosion resistance
Electropolishing – Smooth, burr-free finish
Laser Marking – Part numbers, logos, or batch codes
✔ Quality Assurance
100% Dimensional Inspection (CMM, Optical Comparators)
Hardness Testing – HRC 28-55 (Depending on Material)
Salt Spray Test – 500+ Hours (ASTM B117)
Precision CNC Machined Stainless Steel U-Pins - Technical Specifications
| Parameter | Specification | Testing Standard |
|---|---|---|
| Material | 304/316 Stainless Steel (17-4PH optional) | ASTM A276 |
| Hardness | 304: HRB 70-90 316: HRB 80-95 17-4PH: HRC 28-40 |
ASTM E18 |
| Diameter Range | 3mm-25mm (±0.01mm) | ISO 286-2 |
| Pin Length | 10mm-150mm (±0.05mm) | |
| U-Bend Radius | 1.5×D to 3×D (Customizable) | |
| Groove Dimensions | Width: 1mm-3mm Depth: 0.5mm-1.5mm |
|
| Surface Finish | Standard: Ra 0.8μm Mirror Polish: Ra 0.4μm |
ISO 1302 |
| Straightness | ≤0.02mm/100mm | ISO 1101 |
| Load Capacity | Shear Strength: 400-600MPa | ISO 6892-1 |
| Corrosion Resistance | 500h salt spray (standard) | ASTM B117 |
| Temperature Range | -50°C to +400°C | |
| Certifications | ISO 9001, RoHS | |
| Secondary Processes | Passivation, Electropolishing, Laser Marking | |
| MOQ | 100pcs (Standard Sizes) 1pc (Prototypes) |
|
| Lead Time | Samples: 5 days Production: 10-15 days |
Applications
Automotive – Suspension bushings, linkage retention
Industrial Machinery – Shaft alignment, pivot pins
Aerospace – Lightweight fastening solutions
Electronics – Panel mounting, connector retention
Why Choose Our U-Pins?
✅ High Wear Resistance – Long-lasting performance in harsh conditions
✅ Secure Retention – Grooved ends prevent accidental dislodging
✅ Customizable – Tailored dimensions & materials for your needs
✅ Fast Turnaround – Prototypes in 5 days | Production in 15–40days
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2018
Employee Number:
>63
Ecer Certification：
Verified Supplier
Qingdao Sande Technology Co., Ltd. is located in Qingdao. We are specialized in manufacturing forging, CNC machining and various surface treatments. We have over 16 years of experience.We have a professional and experienced team of engineers, advanced production and testing equipment, a powerful qua... Qingdao Sande Technology Co., Ltd. is located in Qingdao. We are specialized in manufacturing forging, CNC machining and various surface treatments. We have over 16 years of experience.We have a professional and experienced team of engineers, advanced production and testing equipment, a powerful qua...
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