One-shot Seals

Advantages over other Seals 

  • Speedy, no-tool installation 
  • Competitive cost 
  • Steel construction for extra security 
  • Tamper evident 
  • Weather and corrosion resistant 
  • Secure tool needed for removal 
  • Environment friendly 


  • Meter Socket sealing rings 
  • Pad mounted utility equipment 
  • Cable boxes 
  • Cargo containers 
  • Truck trailers 
  • Railroad cars 


Junior One-Shot 

Shackle Diameter: 1/4” (6.4mm) 

Outer Diameter: 1 13/16” (46.0 mm) 

Shackle Gap: 19/32” (15.1mm) 



Senior One-Shot 

(Red cap standard) 

Shackle Diameter: 5/16” (7.9mm)

Outer Diameter: 2 3/8” (60.3 mm)

Shackle Gap: 43/64” (17.1mm)


One-Shot Options 

Red-Caps— Standard on senior one-shots. Prevent unintentional closure.

Serializing/Customizing— For additional security and identification. 

To request pricing information, place an order, or for help identifying the Sterling product that will fit your application, call 1-800-515-4040