ISO 12260:2016
(Main)Aerospace - Screws, pan head, internal offset cruciform ribbed or unribbed drive, stepped shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa - Dimensions
Aerospace - Screws, pan head, internal offset cruciform ribbed or unribbed drive, stepped shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa - Dimensions
ISO 12260:2016 specifies the dimensions of pan head screws with internal offset cruciform ribbed or unribbed drive, stepped shank, short or medium length MJ threads, in metallic material, coated or uncoated, with strength classes less than or equal to 1 100 MPa. It is applicable to the compilation of aerospace product standards.
Aéronautique et espace — Vis à tête cylindrique, à empreinte cruciforme déportée, avec ou sans saillies antidérapantes, à fût dégagé et filetage MJ court ou de longueur moyenne, en matériau métallique, revêtues ou non revêtues, des classes de résistance inférieures ou égales à 1 100 MPa — Dimensions
General Information
Relations
Overview
ISO 12260:2016 specifies the dimensions for a family of aerospace pan‑head screws: internal offset cruciform (ribbed or unribbed) drives, stepped shank, with short or medium length MJ threads, made of metallic material (coated or uncoated) and with strength classes less than or equal to 1 100 MPa. Dimensions and tolerances are given in millimetres and apply after any surface coating but before the application of lubricant. The standard supports the compilation of aerospace product standards and is the second edition (minor revision) of the original 1996 document.
Key Topics
- Screw configuration and dimensions: detailed dimensional requirements for pan head screws with internal offset cruciform drives and stepped shanks; figures and tables (e.g., Figure 1 and Table 1) provide nominal sizes and limits.
- Thread series: short and medium MJ thread forms are covered in accordance with aerospace thread conventions.
- Materials and finishes: applies to metallic screws, coated or uncoated.
- Strength classes: applies specifically to fasteners with strength classes ≤ 1 100 MPa.
- Measurement units and timing: dimensions/tolerances are expressed in millimetres and apply after coating, before lubrication.
- Form and position tolerances: referenced to ISO 7913 for tolerances of form and position.
- Reference tolerance systems: tolerances for linear sizes use the ISO code system (see ISO 286‑2).
Applications
ISO 12260:2016 is intended for organizations involved in the design, manufacture, procurement and quality assurance of aerospace fasteners. Typical users include:
- Aerospace fastener designers and engineers specifying pan‑head MJ screws for assemblies
- Manufacturers and tooling suppliers producing pan‑head screws with internal offset cruciform drives
- Procurement and supply chain teams ensuring purchased fasteners meet aerospace dimensional standards
- Quality control and inspection personnel verifying dimensions and tolerances (post‑coating, pre‑lubricant)
- Standards committees and technical authors compiling aerospace product standards
Practical use cases include specifying interchangeable fasteners for airframe and aircraft component assemblies, ensuring consistent fit and performance across suppliers, and defining inspection criteria for production and incoming inspection.
Related Standards
Normative and closely related references cited in ISO 12260:2016:
- ISO 286‑2 - tolerance classes for holes and shafts
- ISO 3353 (all parts) - lead and runout threads
- ISO 5855‑2 - MJ threads limit dimensions for bolts and nuts
- ISO 7913 - tolerances of form and position for aerospace bolts/screws
- ISO 14275 / ISO 14276 - internal offset cruciform drive specifications
Keywords: ISO 12260, aerospace screws, pan head screws, MJ threads, internal offset cruciform, stepped shank, fastener dimensions, aerospace fasteners standard, tolerances.
Frequently Asked Questions
ISO 12260:2016 is a standard published by the International Organization for Standardization (ISO). Its full title is "Aerospace - Screws, pan head, internal offset cruciform ribbed or unribbed drive, stepped shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa - Dimensions". This standard covers: ISO 12260:2016 specifies the dimensions of pan head screws with internal offset cruciform ribbed or unribbed drive, stepped shank, short or medium length MJ threads, in metallic material, coated or uncoated, with strength classes less than or equal to 1 100 MPa. It is applicable to the compilation of aerospace product standards.
ISO 12260:2016 specifies the dimensions of pan head screws with internal offset cruciform ribbed or unribbed drive, stepped shank, short or medium length MJ threads, in metallic material, coated or uncoated, with strength classes less than or equal to 1 100 MPa. It is applicable to the compilation of aerospace product standards.
ISO 12260:2016 is classified under the following ICS (International Classification for Standards) categories: 49.030.20 - Bolts, screws, studs. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 12260:2016 has the following relationships with other standards: It is inter standard links to ISO 12260:1996. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase ISO 12260:2016 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)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 12260
ISO/TC 20/SC 4
Aerospace — Screws, pan head,
Secretariat: DIN
internal offset cruciform ribbed or
Voting begins on:
20151022 unribbed drive, stepped shank, short
or medium length MJ threads, metallic
Voting terminates on:
20151222
material, coated or uncoated, strength
classes less than or equal to 1 100
MPa — Dimensions
Aéronautique et espace — Vis à tête cylindrique, à empreinte
cruciforme déportée, avec ou sans saillies antidérapantes, à fût
dégagé et filetage MJ court ou de longueur moyenne, en matériau
métallique, revêtues ou non revêtues, des classes de résistance
inférieures ou égales à 1 100 MPa — Dimensions
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
ISO/FDIS 12260:2015(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN
DARDS TO WHICH REFERENCE MAY BE MADE IN
©
NATIONAL REGULATIONS. ISO 2015
ISO/FDIS 12260:2015(E)
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
ISO/FDIS 12260:2015(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Configuration and dimensions . 1
ISO/FDIS 12260:2015(E)
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 committees. 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 nongovernmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or
...
INTERNATIONAL ISO
STANDARD 12260
Second edition
2016-02-15
Aerospace — Screws, pan head,
internal offset cruciform ribbed
or unribbed drive, stepped shank,
short or medium length MJ threads,
metallic material, coated or uncoated,
strength classes less than or
equal to 1 100 MPa — Dimensions
Aéronautique et espace — Vis à tête cylindrique, à empreinte
cruciforme déportée, avec ou sans saillies antidérapantes, à fût
dégagé et filetage MJ court ou de longueur moyenne, en matériau
métallique, revêtues ou non revêtues, des classes de résistance
inférieures ou égales à 1 100 MPa — Dimensions
Reference number
©
ISO 2016
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Configuration and dimensions . 1
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 committees. 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 liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for th
...
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