SPRING LINCH PINS

2. Applications

• Tractor–trolley attachment
   
• Trailer and implement coupling
   
• Agricultural machinery
   
• Heavy farm transportation and off-road equipment
   

3. Material Specifications

• Material: High-carbon steel / Alloy steel
   
• Steel Grades: EN8, EN9, 40Cr, 42CrMo4 (or equivalent)
   
• Surface Finish:
   
  • Zinc plated for corrosion resistance
     
  • Black oxide finish
     
  • Galvanized (optional)
     
• Heat Treatment: Quenched & tempered for high strength and durability
   

4. Dimensional Specifications

(Custom sizes available)

5. Mechanical Properties

• High tensile strength
   
• Excellent shear and impact resistance
   
• Retains locking under vibration and repeated use
   
• Long service life in agricultural environments
   

6. Design Features

• Spring-loaded ring for automatic retention
   
• Easy to insert and remove without tools
   
• Smooth, precision-machined pin body
   
• Resistant to bending and wear
   

7. Quality & Standards

• Manufactured according to ISO / DIN agricultural fastener standards
   
• Visual and dimensional inspection
   
• Load and shear testing on selected samples
   

8. Packaging & Marking

• Bulk packaging or individual bags/cartons
   
• Size, grade, and batch number marking
   
• Protective coating for corrosion prevention during storage