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The Anatomy of a Bottle

Dimensions of the Neck

‘T’ Dimension: The outside diameter of the thread.
“E” Dimension: The minor diameter measured across the root of the threads.
“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.
“I” Dimension: The inner diameter of the bottle neck.

Scroll over the below arrows to highlight the explanations.

Threads are the spiral of plastic which the cap or 
closure twists onto the top of the bottle.

Bottle-Tolerances-table