“H?Dimension: The height of the neck finish.
Measured from the top of the neck to the point where the diameter,
“T? extends down and intersects the shoulder.
“S?Dimension: Measured from the top of the
finish to the top edge of the first thread. The “S?dimension is the
key factor in determining the orientation of the closure to the
bottle and the amount of thread engagement between the bottle and
“I?Dimension: 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?for a proper fit.
“T?Dimension: The outside diameter of the
thread. The tolerance of the “T?dimension determines the mate
between bottle and closure.
“E?Dimension: The minor diameter measured
across the root of the threads.