ISO 12277:2000
(Main)Aerospace - Gang channel, self-locking, floating, standard series, with counterbore, classifications: 1 100 MPa (at ambient temperature) / 120 degrees C, 1 100 MPa (at ambient temperature) / 235 degrees C and 1 100 MPa (at ambient temperature) / 425 degrees C - Dimensions
Aerospace - Gang channel, self-locking, floating, standard series, with counterbore, classifications: 1 100 MPa (at ambient temperature) / 120 degrees C, 1 100 MPa (at ambient temperature) / 235 degrees C and 1 100 MPa (at ambient temperature) / 425 degrees C - Dimensions
This International Standard specifies the dimensions of standard series gang channels with self-locking, floating nuts, with counterbore, with MJ threads, of classifications: This International Standard is only applicable to the compilation of aerospace product standards.
Aéronautique et espace — Bandes à écrous prisonniers, à freinage interne, flottants, série normale, avec chambrage, classifications:1 100 MPa (à température ambiante) / 120 degrés C, 1 100 MPa (à température ambiante) / 235 degrés C et 1 100 MPa (à température ambiante) / 425 degrés C — Dimensions
General Information
- Status
- Published
- Publication Date
- 23-Aug-2000
- Technical Committee
- ISO/TC 20/SC 4 - Aerospace fastener systems
- Drafting Committee
- ISO/TC 20/SC 4 - Aerospace fastener systems
- Current Stage
- 9093 - International Standard confirmed
- Start Date
- 19-Oct-2021
- Completion Date
- 13-Dec-2025
Overview
ISO 12277:2000 specifies the dimensions for aerospace gang channels fitted with self-locking, floating nuts with a counterbore and MJ threads. This International Standard (first edition, 2000-09-01) defines dimensional requirements for the standard series of gang channels for nuts classified by minimum tensile stress at ambient temperature (1 100 MPa) and rated maximum operating temperatures of 120 °C, 235 °C, and 425 °C. The standard is intended for use in the compilation of aerospace product standards.
Key topics and technical requirements
- Component configuration: gang channel (strip) containing floating, self-locking nuts with optional metallic caps; layout and retention left in part to manufacturer discretion where not specified.
- Thread form: MJ thread series in accordance with ISO 5855-2 for bolt and nut limit dimensions.
- Dimensional data: Figure 1 and Table 1 provide detailed dimensional values and tolerances (in millimetres) for standard thread codes (examples included: MJ4, MJ5, MJ6, MJ8).
- Tolerances and form: Tolerances of form and position conform to ISO 8788; surface-texture values apply prior to coating. Dimensions apply after any surface coating(s) but before application of lubricants.
- Thermal and mechanical classification: Nuts are classified by a minimum tensile stress at ambient temperature (1 100 MPa) and by maximum service temperatures (120 °C, 235 °C, 425 °C). The optional metallic cap must remain joined to the nut at the maximum operating temperature (see ISO 5858 test conditions).
- Scope limitation: The standard is specifically applicable to assembling aerospace product standards and procurement specifications (linked to ISO 5858).
Applications and who uses it
ISO 12277 is used by:
- Aerospace fastener designers and mechanical engineers specifying gang channels and captive nut strips.
- Manufacturers and tooling engineers producing self-locking floating nuts with MJ threads and counterbores.
- Procurement and quality assurance teams verifying dimensional compliance of fastener assemblies.
- Standards authors and systems engineers compiling aerospace parts catalogs and procurement specifications.
Practical applications include captive nut strips in airframe assemblies, removable panels, and other aerospace joints requiring controlled locking torque and known thermal performance.
Related standards
- ISO 5855-2 - MJ threads - limit dimensions for bolts and nuts.
- ISO 5858 - Nuts, self-locking - procurement and maximum operating temperature requirements.
- ISO 8788 - Metric nuts - tolerances of form and position.
Keywords: ISO 12277, gang channel, self-locking floating nut, MJ threads, aerospace fasteners, dimensions, counterbore, ISO 5858, ISO 5855-2, ISO 8788.
ISO 12277:2000 - Aerospace -- Gang channel, self-locking, floating, standard series, with counterbore, classifications: 1 100 MPa (at ambient temperature) / 120 degrees C, 1 100 MPa (at ambient temperature) / 235 degrees C and 1 100 MPa (at ambient temperature) / 425 degrees C -- Dimensions
ISO 12277:2000 - Aéronautique et espace -- Bandes a écrous prisonniers, a freinage interne, flottants, série normale, avec chambrage, classifications:1 100 MPa (a température ambiante) / 120 degrés C, 1 100 MPa (a température ambiante) / 235 degrés C et 1 100 MPa (a température ambiante) / 425 degrés C -- Dimensions
Frequently Asked Questions
ISO 12277:2000 is a standard published by the International Organization for Standardization (ISO). Its full title is "Aerospace - Gang channel, self-locking, floating, standard series, with counterbore, classifications: 1 100 MPa (at ambient temperature) / 120 degrees C, 1 100 MPa (at ambient temperature) / 235 degrees C and 1 100 MPa (at ambient temperature) / 425 degrees C - Dimensions". This standard covers: This International Standard specifies the dimensions of standard series gang channels with self-locking, floating nuts, with counterbore, with MJ threads, of classifications: This International Standard is only applicable to the compilation of aerospace product standards.
This International Standard specifies the dimensions of standard series gang channels with self-locking, floating nuts, with counterbore, with MJ threads, of classifications: This International Standard is only applicable to the compilation of aerospace product standards.
ISO 12277:2000 is classified under the following ICS (International Classification for Standards) categories: 49.030.30 - Nuts. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase ISO 12277:2000 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 ISO standards.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 12277
First edition
2000-09-01
Aerospace — Gang channel, self-locking,
floating, standard series, with counterbore,
classifications: 1 100 MPa (at ambient
temperature)/120 °C, 1 100 MPa (at ambient
temperature)/235 °C and 1 100 MPa (at
ambient temperature)/425 °C — Dimensions
Aéronautique et espace — Bandes à écrous prisonniers, à freinage interne,
flottants, série normale, avec chambrage, classifications: 1 100 MPa (à
température ambiante)/120 °C, 1 100 MPa (à température
ambiante)/235 °C et 1 100 MPa (à température ambiante)/425 °C —
Dimensions
Reference number
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ii ISO 2000 – All rights reserved
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical com-
mittees. Each member body interested in a subject for which a technical committee has been established has the
right to be represented on that committee. International organizations, governmental and non-governmental, in liai-
son with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 12277 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles,
Subcommittee SC 4, Aerospace fastener systems.
©
ISO 2000 – All rights reserved iii
Introduction
The dimensions specified in this International Standard have been determined to allow production of a part which will
satisfy the requirements of the procurement specification ISO 5858.
©
iv ISO 2000 – All rights reserved
INTERNATIONAL STANDARD ISO 12277:2000(E)
Aerospace — Gang channel, self-locking, floating,
...
NORME ISO
INTERNATIONALE 12277
Première édition
2000-09-01
Aéronautique et espace — Bandes à écrous
prisonniers, à freinage interne, flottants,
série normale, avec chambrage,
classifications: 1 100 MPa (à température
ambiante)/120 °C, 1 100 MPa (à température
ambiante)/235 °C et 1 100 MPa (à
température ambiante)/425 °C —
Dimensions
Aerospace — Gang channel, self-locking, floating, standard series, with
counterbore, classifications: 1 100 MPa (at ambient temperature)/120 °C,
1 100 MPa (at ambient temperature)/235 °C and 1 100 MPa (at ambient
temperature)/425 °C — Dimensions
Numéro de référence
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Fax + 41 22 749 09 47
E-mail copyright@iso.ch
Web www.iso.ch
ImpriméenSuisse
©
ii ISO 2000 – Tous droits réservés
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux de norma-
lisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général confiée aux comités
techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire partie du comité technique
créé à cet effet. Les organisations internationales, gouvernementales et non gouvernementales, en liaison avec
l'ISO participent également aux travaux. L'ISO collabore étroitement avec la Commission électrotechnique interna-
tionale (CEI) en ce qui concerne la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI, Partie 3.
Les projets de Normes internationales adoptés par les comités techniques sont soumis aux comités membres pour
vote. Leur publication comme Normes internationales requiert l'approbation de 75 % au moins des comités membres
votants.
L'attention est appelée sur le fait que certains des éléments de la présente Norme internationale peuvent faire l'objet
de droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable de ne pas
avoir identifié de tels droits de propriété et averti de leur existence.
La Norme internationale ISO 12277 a été élaborée par le comité technique ISO/TC 20, Aéronautique et espace,
sous-comité SC 4, Éléments de fixation pour constructions aérospatiales.
©
ISO 2000 – Tous droits réservés iii
Introduction
Les dimensions spécifiées dans la présente Norme internationale ont été définies pour permettre la production d'une
pièce satisfaisant aux exigences de la spécification d'approvisionnement ISO 5858.
©
iv ISO 2000 – Tous droits réservés
NORME INTERNATIONALE ISO 12277:2000(F)
Aéronautiq
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