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43-400 Caps

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Cap Neck Finish Guide

43mm caps and closures are designed to fit bottles, jars and containers with a 43-400 thread finish.

Caps and closures are measured using two numbers in the format of 43-400 or 43/400: 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 43mm caps will fit a 43mm opening, due to the differences in thread types between manufacturers.

  • 43mm (43-400) Black PP Foam Lined Ribbed Cap, Each
    Part #: PKW-C043C4RPTSB

    $1.00
  • 43mm (43-400) Black PP Foam Lined Smooth Cap, Each
    Part #: PKW-C043C4SPTSB

    $1.00
  • 43mm (43-400) White PP Foam Lined Smooth Cap, Each
    Part #: PKW-C043C4SPTSW

    $1.00
  • WHEATON® 43-400 PP Caps, White, Foamed Poly Liner, case/72
    Part #: WH-239286

    $26.00 $22.80
  • 43mm (43-400) Natural PP Foam Lined Ribbed Cap, Each
    Part #: PKW-C043C4RPTSN

    $1.00
  • 43mm (43-400) Natural PP Foam Lined Smooth Cap, Each
    Part #: PKW-C043C4SPTSN

    $1.00
  • 43mm (43-400) White PP Foam Lined Ribbed Cap, Each
    Part #: PKW-C043C4RPTSW

    $1.00