Glass Finish Bulletin No. 452

SUBJECT: Glass Finish No. 550 Drawing No.550-15
“Threaded Crown Finish”
Glass Finish No. 565 Drawing No.565-14
“Threaded Crown Finish”
Glass Finish No. 650 Drawing No.650-18
“Crown Finish”
Glass Finish No. 665 Drawing No.665-09
“Crown Finish”
Glass Finish No. 665M Drawing No.FM-665-07
“Metric Crown Finish”
All Approved for Publication: October 17, 2001.

Following review of these glass finish drawings by the Committee on Design and Specifications, the members determined that, consistent with current practices, the following changes should be incorporated in the drawings:

  1. The neck diameter specifications were revised from .969” to 1.000”.

Glass Packaging Institute drawings are intended to provide a voluntary basis for achieving compatibility and interchangeability between manufacturers and users of glass containers and closures. The actual container and closure designs used by manufacturers may differ from these standardized specifications however, and it is the user’s responsibility to make the final determination as to design and compatibility. It is understood that every company remains free to manufacture any container with any finish of its choosing, whether or not GPI has approved, disapproved or not considered a drawing for the particular design.

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