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24-400 Caps

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Cap Neck Finish Guide

These 24mm caps and closures are designed to fit containers with a 24-400 thread finish (neck size.)

Caps and closures are measured using two numbers in the format of 20-400 or 20/400: the first number is the distance in millimeters from outer thread to outer thread when looking at the top of the container; the second is a reference to the design of the threads themselves. Review the image to the right in order to understand thread design, to assist you in selecting the correct cap for your bottle or container. Carefully review your container's threads before selecting a cap even if you know the first measurement; not all 20mm caps will fit a 20mm opening, due to the differences in thread types between manufacturers.

  • WHEATON® 24-400 Black Cone Lined Caps, case/144
    Part #: WH-239257

    $63.00 $54.00
  • WHEATON® 24-400 PP Caps, White, Foamed Poly Liner, case/200
    Part #: WH-242220

    $58.00 $49.80
  • WHEATON® 24-400 Black Phenolic Caps, PTFE Liner, case/100
    Part #: WH-240418

    $198.00 $170.80
  • WHEATON® 24-400 PP Caps, White, Foamed Poly Liner, case/144
    Part #: WH-239281

    $33.00 $28.90
  • WHEATON® 24-400 PP Caps, White, PTFE Liner, case/144
    Part #: WH-239233

    $66.00 $56.80
  • WHEATON® 24-400 Caps, White PP, Foil Liner, case/1000
    Part #: WH-240805

    $189.00 $163.40
  • WHEATON® 24-400 PP Caps, White, PTFE Liner, case/5500
    Part #: WH-239433

    $2,013.00 $1,737.80