December 5, 2008

• Cap and Neck Bottle or Jar Finishes

  Screw thread cap sizes are generally expressed as two numbers. 
  The first number refers to the cap diameter (in millimetres) and the corresponding Glass Packaging Institute (GPI)/Society of the Plastics Industry (SPI) finish diameter. 
  The second number refers to the height and thread configuration of the closure or finish.
  These are commonly used bottle caps or jar caps and [...]