Extra-Lok 28mm

Plastic Closures for Carbonated Soft Drinks, Non-Carbonated Beverages (e.g., Juices, Sport Drinks, Teas, Etc.)

  • Primary Market Segments Served:

    Carbonated Soft Drinks, Non Carbonated Soft Drinks

  • Application/Fill Processes:

    Cold/Ambient-Fill, Carbonated

  • Material Types:


  • Closure Diameters:


  • Bottle Finishes:

    1649-1/2, 1655, 1716, 1810, MCA-2, MCA-3

  • Bottle/Package Types:

    Plastic Non-Returnable Bottles, Plastic Returnable Bottles, Glass Non-Returnable Bottles, Glass Returnable Bottles

  • Knurl Options:

    60, 120

  • Seal Types:

    Two-Piece Lined

  • Tamper Evidence:

    Tamper Evident Band - Standard

  • Brand Names:


Contact us with your requests for product samples, information about products, sales brochures or sales locations.

A local CSI closure specialist will contact you as quickly as possible.

Request More Information

Closure Systems International’s Extra-Lok 28mm, two-piece/lined closure offers an improved tamper band feature to provide a high level of consumer safety while also ensuring ease of application, both critical elements in any cap and closure design.

Excellent Tamper Evidence & Resistance

  • Patented 'bead behind the wing' technology to provide a high level of tamper resistance
  • Improved wing design assures 100 percent tamper evidence on opening
  • Consumer reassurance that package safety has not been compromised

Easy Application & Secure Sealing Performance

  • Robust band design reduces band breakage during closure handling and application
  • Wing style design provides for consistent, ease of application
  • Optimized universal seal for both PET and Glass packaging
    ✓ Authorized for up to 2.25 liter PCO packages
    ✓ Authorized for up to 2 liter 1716 packages
    ✓ Holds up to 5 volumes of CO2 pressure
  • Consistent opening torques

Unsurpassed Promotion Capability

  • Available in a wide range of shell colors for consumer appeal
  • Graphic print capabilities for eye-catching closure top decoration
  • 100 percent Under-the-Cap promotion capable

Total Closure & Capping Systems Solutions

  • In addition to quality closures, CSI provides capping equipment and unparalleled customer and technical service, globally.
  • CSI's closure systems solutions help customers maximize profits by increasing the marketability of their brands and optimizing their total cost of operations.
Not all closures are produced in all regions.
Please contact us for more information.