· Product Overview

· Core Specifications

• Material: 304 Stainless SteelOffers excellent corrosion resistance (suitable for dry/mild-moisture environments), high tensile strength (≥515 MPa), and non-magnetic properties.
• Manufacturing Standard: ISO 9001-Certified Precision CNC Machining
  • Key Processes: CNC turning (cylindrical body) → Precision drilling (side through-hole) → Surface passivation (rust protection) → Deburring (smooth edges).
  • Key Parameters:
    • Standard Dimensions: Diameter = 10–20mm, Length = 15–30mm (customizable)
    • Hole Specification: Through-hole diameter = 2–4mm (matches standard cotter pins)
    • Dimensional Tolerance: ±0.02mm (ensures tight fit in mating part holes)
  • Surface Finish: Passivated (smooth, non-reactive surface; 48-hour salt spray corrosion resistance).

· Application Scenarios

• Industrial Automation: Robotic arm axis positioning, conveyor system component connection, and actuator part locking (side hole enables quick disassembly).
• Mold & Fixture Design: Mold plate alignment pins, workshop jig positioning components, and inspection tool detachable fasteners.
• Mechanical Equipment: Bearing housing positioning, small gearbox shaft connection, and equipment panel detachable mounts.
• Furniture & Hardware: Detachable cabinet hinge pins, shelving bracket connection components, and custom furniture fasteners.
• DIY & Prototyping: Custom equipment frame connections, hobbyist robotics part positioning, and workshop tool detachable components.

· Production Process Introduction

1. Raw Material Sourcing: Procure certified 304 stainless steel bars (metallurgically tested for purity and corrosion resistance).
2. CNC Turning: Use precision CNC lathes to shape the solid cylindrical body to target diameter and length.
3. Precision Drilling: Machine the side through-hole (aligned for consistent secondary locking compatibility).
4. Surface Passivation: Apply a chemical treatment to enhance the stainless steel’s natural rust resistance.
5. Deburring & Finishing: Remove sharp edges (for safe handling) and polish the body/hole surfaces (for smooth assembly).
6. Quality Inspection: Conduct CMM (Coordinate Measuring Machine) scans (dimensional accuracy) + hole alignment checks + corrosion resistance testing.
7. Packaging Prep: Sort pins by size for organized inventory.

· Packaging and Shipping Methods

• Packaging: Individual pins are sealed in anti-scratch plastic bags; bulk orders are packed in foam-lined partitioned boxes (prevents deformation and surface damage during transit).
• Shipping: Flexible logistics options:
  • Express Delivery (DHL/FedEx/UPS: 3–5 business days)
  • Air Freight (7–10 business days)
  • Sea Freight (20–30 business days)All shipments include full tracking and damage insurance.

· Process

· Frequently Asked Questions (FAQ)

• MOQ (Minimum Order Quantity): 500 pieces per size specification; small sample packs (20–50 pieces) are available for fit testing.
• Lead Time: Standard lead time is 7–10 working days after order confirmation; expedited production (5–7 working days) is available for urgent orders (additional fees apply).
• Customization Capability: Full customization is supported—we can adjust pin diameter/length, modify hole size/position, or switch to 316 stainless steel (for harsh/sterile environments) based on your technical drawings. Our engineering team will validate design feasibility for positioning and locking performance.