8mm Caps

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Cap Neck Finish Guide

8mm caps and closures include 8-425 thread finishes.

Caps and closures are measured using two numbers in the format of 8-425 or 8/425: 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 8mm caps will fit a 8mm opening, due to the differences in thread types between manufacturers.

  • 8-425 Blue PP Large Opening Hole Caps, case/1000
    Part #: QP-VC71193-102

    $68.00 $57.43
  • 8-425 Green PP Large Opening Hole Caps, case/1000
    Part #: QP-VC71194-102

    $68.00 $57.43
  • 8-425 PP Hole Caps, PTFE/Red Rubber 0.040" Septa, case/1000
    Part #: QP-256426

    $295.00 $246.62
  • 8-425 PP Hole Caps, PTFE/Silicone/PTFE 0.040" Septa, case/1000
    Part #: QP-VC11192-122

    $364.00 $304.53
  • 8-425 PP Hole Caps, Red PTFE/Silicone .050" Septa, case/1000
    Part #: QP-256427

    $372.00 $310.77
  • 8-425 PP Solid Top Cap PTFE/F217 Lined, case/1000
    Part #: QP-VC11209-222

    $263.00 $219.82
  • 8-425 PP Standard Opening Caps, case/1000
    Part #: QP-VC11210-202

    $63.00 $53.03
  • 8-425 PP Unlined Hole Caps, case/1000
    Part #: QP-VC71189-102

    $77.00 $64.90
  • 8-425 Pre-assembled Hole Caps, PTFE/Silicone Septa, case/1000
    Part #: QP-VC11190-122

    $289.00 $234.27
  • 8-425 Red PP Large Opening Hole Caps, case/1000
    Part #: QP-VC71195-102

    $68.00 $57.43
  • 8-425 Ribbed Bottle Cap, Vinyl Lined
    Part #: QP-CAP-00101-EA

    $0.19 $0.16
  • 8-425 Top Hat, pre-assembled, PTFE/Silicone Septa, case/1000
    Part #: QP-VC11191-122

    $487.00 $406.79