33-400 Caps

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Cap Neck Finish Guide

These 33mm caps and closures are designed to fit bottles, jars and containers with 33-400 thread finishes.

Caps and closures are measured using two numbers in the format of 33-400 or 33/400: 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 33mm caps will fit a 33mm opening, due to the differences in thread types between manufacturers.

  • 33-400 Bottle Cap, Vinyl Lined
    Part #: QP-CAP-00209-EA

    $0.36 $0.29
  • 33-400 White Ribbed Cap, Foam Lined
    Part #: QP-CAP-00359-EA

    $0.16 $0.13
  • 33-400 White Metal Cap, Pulp Polyethylene Lined
    Part #: QP-CAP-00437-EA

    $0.29 $0.23
  • 33-400 Green Thermoset Screw Caps, F217 & PTFE Liner, Each
    Part #: QP-CAP-00559-EA

    $0.94 $0.73
  • 33-400 White Hole Cap, Bonded, PTFE/Silicone Septa
    Part #: QP-CAP-00355-EA

    $1.78 $1.37
  • 33-400 Ribbed Bottle Cap, Cone Lined
    Part #: QP-CAP-00204-EA

    $0.47 $0.37
  • 33-400 Black Bottle Cap, 14B Rubber Lined, Autoclavable
    Part #: QP-CAP-00488-EA

    $0.65 $0.50
  • 33-400 Black Ribbed Polypropylene Unlined Caps, Each
    Part #: QP-CAP-00357

    $0.21 $0.16
  • 33-400 Bottle Cap, Aluminum Foil Liner
    Part #: QP-CAP-00206-EA

    $0.38 $0.31
  • 33-400 Bottle Cap, Solid Polyethylene Lined
    Part #: QP-CAP-00207-EA

    $0.41 $0.32
  • 33-400 Green Thermoset Caps, PTFE Liner, case/500
    Part #: QP-CAP-00560

    $489.00 $405.56