· Product Overview

· Core Specifications

· Application Scenarios

• Industrial Machinery: Pivot pins for linkages, levers, conveyor systems, and heavy-duty equipment
• Automotive & Transportation: Clevis pins for suspension components, brake linkages, door hinges, and trailer hitches
• Marine & Offshore Equipment: Corrosion-resistant locking pins for deck hardware, marine machinery, and offshore rigs (316L variant)
• Aerospace & UAVs: Lightweight locking pins for structural assemblies, control surfaces, and payload mounts
• Medical Devices: Non-magnetic pivot pins for surgical instruments, patient lifts, and diagnostic equipment (316L variant)
• Construction Hardware: Locking pins for scaffolding, safety barriers, and heavy-duty lifting gear

· Production Process Introduction

1. Design & DFM Validation: Our engineering team optimizes pin length, flange dimensions, and cotter pin hole positions via Design for Manufacturability (DFM) analysis to ensure maximum load capacity and locking stability.
2. Material Preparation: Premium stainless steel bar stock is cut to size and faced to create a clean, uniform starting surface.
3. Precision CNC Machining:
   • Turning: The flanged head and cylindrical body are precision-turned to achieve tight OD tolerances and a smooth finish.
   • Drilling: Transverse cotter pin holes and small end holes are drilled to precise dimensions for reliable locking.
   • Chamfering: All sharp edges are chamfered to prevent injury and simplify installation.
4. Surface Finishing: Pins undergo brushing and passivation to remove contaminants and enhance corrosion resistance.
5. Quality Inspection: 100% dimensional inspection via CMM and micrometer verifies OD, flange size, and hole alignment; a functional test ensures smooth cotter pin insertion.
6. Final Packaging: Pins are wrapped in anti-scratch film and secured in custom foam trays to prevent bending or scratching during transit.

· Packaging and Shipping Methods

• Standard Packaging: Each pin is wrapped in anti-scratch PE film, placed in custom-cut EPE foam inserts inside a reinforced corrugated box, with additional bracing to prevent bending. Bulk orders are secured on wooden pallets with plastic wrapping.
• Shipping Options:
  • Express Delivery (3–7 Business Days): DHL/FedEx/UPS for prototype and small-batch orders (full tracking provided).
  • Standard Sea Freight (25–40 Business Days): Cost-effective FCL/LCL options for large-volume production orders, with full customs documentation support.
• Custom Packaging: Branded labeling, barcoding, and custom tray inserts are available to align with your independent store’s brand guidelines and inventory management needs.

· Process

· Frequently Asked Questions (FAQ)

What is your Minimum Order Quantity (MOQ)?

What are your typical lead times?

• Prototype/Sample Orders: 7–10 business days from final CAD design approval (includes machining and finishing).
• Mass Production: 15–25 business days, depending on order volume, pin length, and custom feature requirements.
• Rush Service: Expedited production (4–6 days for samples) is available upon request for urgent restocks.

Can you accommodate full custom modifications?

• Size & Shape Customization: Custom overall length, OD, flange dimensions, and cotter pin hole size to match your specific application.
• Feature Modifications: Custom hole positions, groove designs, or threaded ends for specialized locking or mounting needs.
• Material Upgrades: Switch between 304 stainless steel (general corrosion resistance) or 316L stainless steel (medical/marine high-corrosion environments).
• Surface Finish Options: Custom plating (zinc/nickel), anodizing, or black oxide for enhanced durability or aesthetic appeal.
• Branding & Traceability: Laser engraving of logos, part numbers, or batch codes for full product traceability.