Downhole Products' SHRINK-LOK is a high holding force 360° gripping stop collar device which can be used as a conventional stop collar on casing and liner or a protection device for packer and over-screen applications.


  • High holding force upwards of 40 tons
  • 360° bi-directional gripping area
  • Casing-friendly, no set screw penetration or carbon steel impregnation
  • Suitable for use on all chrome tubulars


  • Multiple design options available
  • Sizes from 2-3/8" through 9-5/8"

For specifications, application solutions, and SHRINK-LOK availability, please contact your local Downhole Products representative.