Precision CNC Machined Stainless Steel 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

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