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.

  • 43-400 White Metal Cap, Pulp Polyethylene Lined
    Part #: QP-CAP-00444-EA

    $0.39 $0.31
  • 43-400 Bottle Cap, Solid Polyethylene Lined
    Part #: QP-CAP-00243-EA

    $0.65 $0.50
  • 43-400 Bottle Cap, Vinyl Lined
    Part #: QP-CAP-00245-EA

    $0.52 $0.40
  • 43mm (43-400) Black Polypropylene Foam Lined Ribbed Cap
    Part #: PKW-C043C4RPTSB

    $2.00 $1.06
  • 43mm (43-400) Black Polypropylene Foam Lined Smooth Cap
    Part #: PKW-C043C4SPTSB

    $2.00 $1.06
  • 43-400 Green Thermoset Screw Caps, F217 & PTFE Liner, Each
    Part #: QP-CAP-00066-EA

    $1.57 $1.21
  • 43-400 Black Bottle Cap, 14B Rubber Lined, Autoclavable
    Part #: QP-CAP-00492-EA

    $1.25 $0.97
  • 43-400 Bottle Cap, Aluminum Foil Liner
    Part #: QP-CAP-00242-EA

    $0.53 $0.41
  • WHEATON® 43-400 PP Caps, White, Foamed Poly Liner, case/72
    Part #: WH-239286

    $27.00 $21.90
  • 43-400 Black Ribbed Polypropylene unlined Cap
    Part #: QP-CAP-00381-EA

    $0.16 $0.13
  • 43-400 PP Unlined Cap Packed in bags of 12, case/576
    Part #: QP-CAP-06635

    $145.00 $122.28
  • 43-400 PP Unlined Caps, Packed in bags of 100, case/500
    Part #: QP-CAP-00383

    $82.00 $69.59
  • 43-400 White Metal Cap, Aluminum Foil Lined
    Part #: QP-CAP-00443-EA

    $0.45 $0.35