Hair Pin Cotters

Internal Hair Pin Cotters


  • Used to hold parts and shafts in position or to secure a shaft within an assembly.
  • A hole in the shaft is necessary for installation.
  • A wide range of specials are available for custom applications.


External Hair Pin Cotters


  • Used to hold parts and shafts in position when the fastening can be made around an external groove.
  • For maximum security, the groove depth should be at least one half the diameter of the cotter stock.
  • A wide range of specials are available for custom applications.