DIN 94 COTTER PIN / SPLIT PIN TECHNICAL DATA
| NOMINAL DIAMETER | MIN (d₁) | MAX (d₁) | A | B | C MIN | C MAX |
|---|---|---|---|---|---|---|
| 0.6 | 0.5 | 0.4 | 1.6 | 2 | 0.9 | 1 |
| 0.8 | 0.7 | 0.6 | 1.6 | 2.4 | 1.2 | - |
| 1 | 0.9 | 0.8 | 2.5 | 3 | 1.6 | - |
| 1.2 | 1.4 | 0.9 | 2.5 | 3.2 | 1.7 | - |
| 1.6 | 1.8 | 1.3 | 2.5 | 4 | 2.4 | - |
| 2 | 1.7 | 1.7 | 3.2 | 5 | 3.2 | - |
| 2.5 | 2.5 | 2.5 | 4 | 6.4 | 4 | - |
| 3.2 | 2.7 | 2.7 | 5 | 8 | 5.1 | - |
| 4 | 3.5 | 3.5 | 6.4 | 10 | 6.5 | - |
| 5 | 4.4 | 4.4 | 8 | 12.6 | 8 | - |
| 6.3 | 5.9 | 5.9 | 10 | 16 | 10.3 | - |
| 8 | 7.5 | 7.3 | 12.6 | 20 | 13.1 | - |
| NOMINAL DIAMETER | MIN (d₁) | MAX (d₁) | A | B | C MIN | C MAX |
|---|---|---|---|---|---|---|
| 10 | 9.5 | 9.3 | 16 | - | 16.6 | - |
| 13 | 12.4 | 12.1 | 20 | - | 21.7 | - |
| 16 | 15.4 | 15.1 | - | - | 27 | - |
| 20 | 19.3 | 19 | - | - | 33.8 | - |
| NOMINAL DIAMETER | LENGTH (L) |
|---|---|
| 0.6 | 4-12 |
| 0.8 | 5-16 |
| 1 | 6-20 |
| 1.2 | 8-25 |
| 1.6 | 8-32 |
| 2 | 10-40 |
| 2.5 | 12-50 |
| 3.2 | 14-63 |
| 4 | 14-80 |
| 5 | 22-100 |
| 6.3 | 32-125 |
| 8 | 40-160 |
| 10 | 56-200 |
| 13 | 90-250 |
| 16 | 125-280 |
| 20 | 160-280 |
- Iron
- Stainless Steel
- Brass
- Copper
- Electrolytic Coating
- Safety Mechanism: A security system that prevents nuts and bolts from loosening
- Vibration Resistance: Reliable fastening under dynamic loads
- Easy Assembly/Disassembly: Practical to use and maintain
- Long Service Life: Maximum durability with high-quality material
Main Industrial Applications
Automotive Industry: Engine, chassis, and suspension connections
Machinery Manufacturing: Industrial machines and equipment
Aviation Industry: Aircraft and helicopter systems
Railway Systems: Rail connections and wagon systems
Agricultural Machinery: Tractor and harvesting equipment
Construction Equipment: Cranes, excavators, and other heavy machinery
Special Applications
Robotic Systems: Precision mechanism connections
Medical Devices: Safety fastenings in sterile environments
Power Plants: Turbine and generator systems
Maritime Industry: Ship and marine vehicle systems
Advanced Manufacturing Processes
The production of split pins (cotter pins) is carried out using modern manufacturing technologies:
Wire Processing Technologies: Precision cutting and bending processes
Heat Treatment Processes: Hardening and tempering operations
Surface Treatments: Coating and finishing technologies
Mold Design: Optimized molds for special shapes
Comprehensive Quality Control Systems
The quality of manufactured split pins is ensured through rigorous quality control processes:
Dimensional tolerance and geometric inspections
Material hardness and strength tests
Surface quality and coating uniformity checks
Functional tests and performance validation
Corrosion resistance tests
Factors Affecting Pricing
The production cost of split pins varies depending on several factors:
Quantity Produced: The unit price may vary based on the number of split pins manufactured
Material Type and Quality: Costs differ for various metals and alloys
Production Complexity: Special-shaped cotter pin types are more costly
Coating and Treatments: Protective and decorative surface processes
Special Tolerances: Tight tolerance requirements affect the overall cost
Economies of Scale in Mass Production
Significant economies of scale can be achieved depending on the number of split pins produced. Bulk split pin manufacturing for large projects substantially optimizes the unit price.
Mechanical Advantages
Superior Safety: Reliable locking mechanism in vibrating environments
High Strength: Enhanced durability through high-quality materials
Flexible Design: Variety that adapts to different applications
Long Service Life: Maximum lifespan with corrosion resistance
Easy Application: Simple assembly and disassembly process
Application Advantages
Split pin production offers the following application benefits:
Secure fastening in vibrating machinery
Safety mechanism in industrial equipment
Safety component in automotive systems
Critical fastener in aviation applications
Ease of maintenance and time savings
Project-Based Order Processes
Technical Requirement Analysis: Determining the operating conditions and intended use
Engineering Design: Project-specific split pin design and drafting
Prototype Development: Production and testing of the cotter pin prototype
Certification and Approval: Compliance certification according to DIN 94 standards
Mass Production Planning: Production optimization based on the quantity of manufactured split pins
Quality Documentation and Delivery: Quality certificates for the produced split pins and project shipment
Project Customization Options
Split pin production can be customized with the following options:
Custom Sizes and Shapes: Project-specific cotter pin designs
Special Material Selection: Custom alloys upon request
Color-Coded Coatings: Colored coatings based on application requirements
Marking and Coding: Batch number or logo marking
Custom Packaging: Industrial or retail packaging
DIN 94 Split Pins (Cotter Pins) are available with full technical consultancy and price quotations. You can contact our expert team for fork-type, spring-type, or wedge-type cotter pin variations.
Our expert team specializes in split pin and cotter pin manufacturing, producing high-quality components using mild steel, stainless steel, copper-zinc alloys, and all other cotter pin materials. We provide DIN 94-compliant split pins that ensure secure fastening solutions for vibration-generating machinery. We are pleased to be your technical solution partner for nut safety, lock ring fastening, and all other critical safety-locking requirements.