"T" - The "T" dimension is the major diameter measured across the outside of the threads.

"E" - The "E" dimension is the minor diameter measured across the root of the threads.

"H" - The "H" dimension is measured from the top of the finish to a point where diameter "T" extended parallel to the finish center line, intersects bottle shoulder or bead. The bottle finish "H" must be greater than closure "H" (corrected for the thickness of the compressed liner or other sealing elements).

"S" - The "S" dimension is measured from the top of the finish to the top of the thread at the start of full thread profile.

"I" - The "I" dimension is the minimum diameter opening through the finish and the neck.