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"I"
Dimension: |
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The
inner diameter of the bottle neck. Specifications require a minimum "I"
to allow sufficient clearance for filling tubes. Linerless closures, with
a plug or land seal, and dispensing plugs and fitments require a controlled
"I" dimension for a proper fit
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"T"
Dimension: |
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The
outside diameter of the thread. The tolerance range of the "T" dimension
will determine the mate between bottle and closure
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"E"
Dimension: |
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The
outside diameter of the neck. The difference between the "E" and "T" dimensions
divided by two determines the thread depth.
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"H"
Dimension: |
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The
height of the neck finish. Measured from the top of the neck to the point
where the diameter "T," extended down, intersects the shoulder.
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"S"
Dimension: |
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Measured
from the top of the finish to the top edge of the first thread. The "S"
dimension is the key factor which determines the orientation of the closure
to the bottle and the amount of thread engagement between the bottle and
cap
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