Overview
Cotter pins are two-pronged fasteners used to secure clevis pins, slotted nuts, castle nuts, and shaft assemblies in mechanical systems. Installed through a pre-drilled hole and bent to lock in place, cotter pins provide simple, reliable retention in high-vibration and load-bearing environments.
Offshore Milling & Sourcing supports bulk and factory-direct sourcing programs for cotter pins, serving agricultural manufacturers, trailer producers, heavy equipment OEMs, industrial distributors, and MRO supply chains requiring consistent dimensional accuracy and high-volume availability.
We structure recurring import programs aligned with production schedules, container consolidation, and cost-controlled sourcing strategies.
Types of Cotter Pins Available
- Standard Cotter Pins
- Extended Prong Cotter Pins
- Hammer Lock Cotter Pins
- Stainless Steel Cotter Pins
- Zinc-Plated Cotter Pins
- Custom Length Cotter Pins
- Per-Print Retention Pins
Specifications
- Diameter Range: 1/16″ – 1/2″ (Metric sizes available)
- Length Range: Standard and custom lengths
- Prong Configuration: Equal prongs / Unequal prongs
- Head Style: Flat head / Extended head
- Tolerance: Application-specific
Cotter pins are commonly sized to match clevis pins and slotted nut assemblies.
Materials
- Low Carbon Steel
- Spring Steel
- Stainless Steel 304
- Stainless Steel 316
- Specialty alloys upon request
Material selection is driven by environmental exposure, corrosion requirements, and load conditions.
Finish & Coating Options
- Zinc Plated
- Yellow Zinc
- Plain Finish
- Black Oxide
- Stainless Steel (Corrosion Resistant)
- Custom protective coatings available
Finish selection is especially important for outdoor, agricultural, and marine environments.
Industries Served
- Agricultural Equipment
- Trailer & Towing Equipment
- Construction Equipment
- Industrial Machinery
- Automotive Applications
- Heavy Equipment OEMs
- Industrial Distribution
- MRO Supply
Applications
- Securing clevis pins
- Locking castle nuts
- Shaft retention
- Hitch assemblies
- Pivot assemblies
- Mechanical linkage systems
Cotter pins are widely used in applications requiring quick installation, secure retention, and field serviceability.
Strategic Sourcing Capabilities
Cotter pins are typically high-volume, recurring components in equipment and hardware assemblies.
Offshore Milling & Sourcing supports:
- Factory-direct bulk import programs
- Container consolidation with clevis pins and hitch hardware
- Secondary supplier sourcing
- Volume-based pricing structures
- Recurring annual supply agreements
- Private label packaging
We frequently assist manufacturers and distributors seeking stable pricing, consistent plating quality, and dependable delivery schedules.
Volume & Packaging Options
- Bulk cartons
- Assortment packaging
- Palletized shipments
- Custom-labeled packaging
- Mixed SKU container programs
- Scheduled recurring imports
Request a Quote
To request cotter pin pricing, please provide:
- Diameter
- Length
- Material
- Finish requirement
- Quantity
- Delivery timeline
Engineering specifications may be included with your RFQ if required.
