EN 17829:2023
(Main)Glass packaging - 28 millimetre-screw finishes (MCA range) - Dimensions
Glass packaging - 28 millimetre-screw finishes (MCA range) - Dimensions
This document specifies the dimensions of the various 28 mm screw finishes for glass containers designated MCA.
Verpackungen aus Glas - 28 Millimeter-Schraubmundstücke (MCA-Serie) - Maße
Dieses Dokument legt die Maße der verschiedenen 28-mm-Schraubmundstücke für Glasbehälter mit der Bezeichnung MCA fest.
Emballage en verre - Bagues à vis de 28 millimètres (bagues MCA) - Dimensions
Le présent document spécifie les dimensions des différentes bagues à vis de 28 mm pour récipients en verre désignées sous l’appellation bagues MCA.
Steklena embalaža - Grla z navojem odprtine 28 mm za steklenice (oznaka MCA) - Mere
Ta dokument določa mere za različna 28-milimetrska grla z navojem za steklene posode MCA.
General Information
Relations
Overview
EN 17829:2023 - Glass packaging: 28 millimetre screw finishes (MCA range) - Dimensions - is the CEN standard that consolidates and replaces earlier MCA finish standards. It defines the dimensional specifications for 28 mm screw finishes used on glass containers (MCA series) intended for pressurised or vacuum liquids with metal or plastic closures. The document harmonises finish geometry across MCA types (MCA 1, MCA 2, MCA 3, MCA 7,5 R and MCA 7,5 RF) to ensure closure compatibility, sealing performance and manufacturability.
Key topics and technical requirements
- Dimensional requirements: Specifies main finish dimensions (height F, neck/under-bead diameter N, thread height H, thread diameter T, locking bead L, entry bore C). The standard sets a minimum through bore of 16 mm and explains the chosen F dimension (14.20 mm).
- Thread profiles and pitches: Defines the distinct thread profiles for each MCA type (flat, round, round-flat variations) and the associated pitch/helix parameters. Start-of-thread and run-out geometry are illustrated to ensure consistent sealing and capping performance.
- Capping head clearance: Gives capping head clearance limits and construction details under the crimping bead to ensure reliable application of closures.
- Entry bore constructions: Provides alternative entry-bore constructions to suit different glass moulding practices.
- Illustrative figures and tables: Includes dimensional drawings, tables of type-specific values and formulae (e.g., helix angle calculation) to allow designers to implement accurate mould and closure tooling.
- Compatibility notes: Highlights differences between returnable and one-way versions (e.g., typical neck diameters) and advises fillers to verify finish–cap compatibility.
Practical applications
- Ensures consistent interchangeability between glass bottles and 28 mm closures across Europe.
- Guides design and tooling for:
- Glass bottle mould designers and manufacturers
- Cap and closure manufacturers (metal and plastic)
- Fillers and packagers verifying closure performance (pressure, vacuum, tamper-evidence)
- Quality engineers and laboratories performing dimensional inspections
- Supports market development for both one‑way (single trip) and returnable glass systems where reliable sealing and repeated use are required.
Who uses this standard
- Glass container designers and OEMs
- Closure and cap manufacturers
- Packaging engineers and fillers in beverage and liquid food industries
- Mouldmakers and capping equipment suppliers
- National standards bodies and conformity assessors
Related standards
EN 17829:2023 supersedes and merges previous MCA-specific standards including:
- EN 16287-1/2, EN 16288-1/2, EN 16289, EN 16290-1/2, EN 16291-1/2 Relevant bibliography also references Cetie guidance and finish glossaries used in the glass-packaging sector.
Keywords: EN 17829:2023, 28 millimetre screw finishes, MCA range, glass packaging dimensions, thread profiles, capping head clearance, returnable bottles, one-way bottles, closure compatibility.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2023
Nadomešča:
SIST EN 16287-1:2014
SIST EN 16287-2:2014
SIST EN 16288-1:2014
SIST EN 16288-2:2014
SIST EN 16289:2013
SIST EN 16290-1:2014
SIST EN 16290-2:2014
SIST EN 16291-1:2013
SIST EN 16291-2:2013
SIST EN 16291-2:2013/AC:2014
Steklena embalaža - Grla z navojem odprtine 28 mm za steklenice (oznaka MCA) -
Mere
Glass packaging - 28 millimetre-screw finishes (MCA range) - Dimensions
Verpackungen aus Glas - 28 Millimeter-Schraubmundstücke (MCA-Serie) - Maße
Emballage en verre - Bagues à vis de 28 millimètres (bagues MCA) - Dimensions
Ta slovenski standard je istoveten z: EN 17829:2023
ICS:
55.100 Steklenice. Lonci. Kozarci Bottles. Pots. Jars
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 17829
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2023
EUROPÄISCHE NORM
ICS 55.100 Supersedes EN 16287-1:2014, EN 16287-2:2014, EN
16288-1:2014, EN 16288-2:2014, EN 16289:2013, EN
16290-1:2014, EN 16290-2:2014, EN 16291-1:2013,
EN 16291-2:2013
English Version
Glass packaging - 28 millimetre-screw finishes (MCA
range) - Dimensions
Emballage en verre - Bagues à vis de 28 millimètres Verpackungen aus Glas - 28 Millimeter-
(bagues MCA) - Dimensions Schraubmundstücke (MCA-Serie) - Maße
This European Standard was approved by CEN on 26 June 2023.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17829:2023 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Capping head clearance . 7
5 Dimensions. 8
6 Thread profiles . 11
Annex A (informative) Example of uses in Europe . 13
Annex B (informative) Justification of the choice of the F dimension . 14
Bibliography . 15
European foreword
This document (EN 17829:2023) has been prepared by Technical Committee CEN/TC 261 “Packaging”,
the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2024, and conflicting national standards shall
be withdrawn at the latest by January 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes:
— EN 16287-1:2014, Glass packaging — Screw finishes for pressure capsules — Part 1: Returnable glass
MCA 1 finish;
— EN 16287-2:2014, Glass packaging — Screw finishes for pressure capsules — Part 2: One way glass
MCA 1 finish;
— EN 16288-1:2014, Glass packaging — Screw finishes for pressure capsules — Part 1: Returnable glass
MCA 3 finish;
— EN 16288-2:2014, Glass packaging — Screw finishes for pressure capsules — Part 2: One way glass
MCA 3 finish;
— EN 16289:2013, Glass packaging — Screw finishes for pressure capsules — MCA 7,5 RF finish;
— EN 16290-1:2014, Glass packaging — Screw finishes for pressure capsules — Part 1: Returnable glass
MCA 7,5 R finish;
— EN 16290-2:2014, Glass packaging — Screw finishes for pressure capsules — Part 2: One way glass
MCA 7,5 R finish;
— EN 16291-1:2013, Glass packaging — Screw finishes for pressure capsules — Part 1: Returnable glass
MCA 2 finish;
— EN 16291-2:2013, Glass packaging — Screw finishes for pressure capsules — Part 2: One way glass
MCA 2 finish.
The main changes compared to the previous editions are listed below:
— merger of all the requirements and dimensional features in one single document.
— some dimensions have been slightly modified in order to harmonize the main dimensions of the
different MCA-types (ØN, height F, some radii, …).
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Introduction
MCA is the designation for the agreement regarding a common finish specification between the
companies Metal Closures Limited in Great Britain and Alcoa in the USA which are at the origin of these
finishes. Originally, these finishes were used on “one way” (single trip) bottles with aluminium closures.
The advent of the returnable market in Europe made it necessary to redesign the neck finish to overcome
shortcomings in thread and sealing performance. The main differences between the finishes are
concerning the thread profile and its pitch.
Historically, the development of the MCAs is partially explained by the differences presented below:
— MCA 1: “flat” under-thread profile, well adapted to the plastic closures;
— MCA 2: round thread profile, more robust and hence better adapted to returnable bot
...
Frequently Asked Questions
EN 17829:2023 is a standard published by the European Committee for Standardization (CEN). Its full title is "Glass packaging - 28 millimetre-screw finishes (MCA range) - Dimensions". This standard covers: This document specifies the dimensions of the various 28 mm screw finishes for glass containers designated MCA.
This document specifies the dimensions of the various 28 mm screw finishes for glass containers designated MCA.
EN 17829:2023 is classified under the following ICS (International Classification for Standards) categories: 55.100 - Bottles. Pots. Jars. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 17829:2023 has the following relationships with other standards: It is inter standard links to EN 16291-2:2013/AC:2014, EN 16287-1:2014, EN 16290-1:2014, EN 16288-1:2014, EN 16288-2:2014, EN 16287-2:2014, EN 16289:2013, EN 16290-2:2014, EN 16291-2:2013, EN 16291-1:2013. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 17829:2023 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...