# GME21.10 - Flavlock finishes ø 26 to 38 mm — Packaging specification equivalence: neck finishes, corrugated grades and pallet standards For GME21.10 - Flavlock finishes ø 26 to 38 mm, specification type is neck_finish; description is Range of Flavlock neck finishes with sizes from 26 to 38, intended as RO (Roll-On) finishes with metallic caps. The D-shaped thread run-off into the transfer bead; primary dimension is 26 to 38 mm nominal size; equivalence or compatibility note is RO (Roll-On) finishes with metallic caps; additional data is D-shaped thread run-off into the transfer bead, recorded from its source on 2026-08-12. - **Specification ID:** GME21.10 - Flavlock finishes ø 26 to 38 mm _(verified: appears in the quote below)_ - **Specification type:** neck_finish _(our reading, not quoted from the source)_ - **Description:** Range of Flavlock neck finishes with sizes from 26 to 38, intended as RO (Roll-On) finishes with metallic caps. The D-shaped thread run-off into the transfer bead. _(verified: appears in the quote below)_ - **Primary dimension:** 26 to 38 mm nominal size - **Equivalence or compatibility note:** RO (Roll-On) finishes with metallic caps _(verified: appears in the quote below)_ - **Additional data:** D-shaped thread run-off into the transfer bead _(verified: appears in the quote below)_ ## What the source says > See detail GME21.10 - Flavlock finishes ø 26 to 38 mm 07/05/2021 - Latest update 29/09/2021 This range of Flavlock neck finishes with sizes from 26 to 38 are intended as RO (Roll-On) finishes with metallic caps. The D-shaped thread run-off into the transfer bead. ## Source - https://www.cetie.org/en/finish-data-sheets-gme_102.html Last verified: 2026-08-12. Review by: 2028-08-11. Part of [Packaging specification equivalence: neck finishes, corrugated grades and pallet standards](https://referencesource.org/packaging-material-specification-equivalence/).