ISO/DIS 4580

Aerospace -- Internal drive, TORX PARALOBE, driver bit -- Geometrical definition, gaging and technical requirements

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DRAFT INTERNATIONAL STANDARD
ISO/DIS 4580
ISO/TC 20/SC 4 Secretariat: DIN
Voting begins on: Voting terminates on:
2021-02-16 2021-05-11
Aerospace — Internal drive, TORX PARALOBE, driver bit —
Geometrical definition, gaging and technical requirements
ICS: 49.030.01
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
This document is circulated as received from the committee secretariat.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 4580:2021(E)
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 SUPPORTING DOCUMENTATION. ISO 2021
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ISO/DIS 4580:2020(E)
ISO/DIS 4580:2021(E)
Contents

Foreword ................................................................................................................................................................ iv

Introduction ........................................................................................................................................................... v

1 Scope ................................................................................................................................................................. 1

2 Normative references ................................................................................................................................. 1

3 Terms and definitions ................................................................................................................................ 1

3.1 Driver bit ......................................................................................................................................................... 1

3.2 Recess ............................................................................................................................................................... 1

4 Basic driver bit configuration ................................................................................................................. 1

4.1 General ............................................................................................................................................................. 1

4.2 Basic driver bit configuration dimensions — metric ...................................................................... 2

4.3 Basic driver bit configuration dimensions — inch .......................................................................... 3

4.4 Driver bit designation ................................................................................................................................ 4

5 Driver bit inspection ................................................................................................................................... 5

5.1 Driver bit gaging equipment .................................................................................................................... 5

5.2 Driver bit gaging procedure ..................................................................................................................... 5

5.3 Driver bit inspection gage dimensions — metric ............................................................................. 6

5.4 Driver bit inspection gage dimensions — inch ................................................................................. 6

6 Driver bit torque test .................................................................................................................................. 7

6.1 Driver bit torque test apparatus ............................................................................................................ 7

6.2 Torque test fixture....................................................................................................................................... 7

6.3 Torque wrench/Torsion machine ......................................................................................................... 9

7 Driver bit torque test procedure ............................................................................................................ 9

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Published in Switzerland
© ISO 2020 – All rights reserved iii
ii © ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/DIS 4580:2021(E)
Contents

Foreword ................................................................................................................................................................iv

Introduction ........................................................................................................................................................... v

1 Scope ................................................................................................................................................................. 1

2 Normative references ................................................................................................................................. 1

3 Terms and definitions ................................................................................................................................ 1

3.1 Driver bit ......................................................................................................................................................... 1

3.2 Recess ............................................................................................................................................................... 1

4 Basic driver bit configuration ................................................................................................................. 1

4.1 General ............................................................................................................................................................. 1

4.2 Basic driver bit configuration dimensions — metric ...................................................................... 2

4.3 Basic driver bit configuration dimensions — inch .......................................................................... 3

4.4 Driver bit designation ................................................................................................................................ 4

5 Driver bit inspection ................................................................................................................................... 5

5.1 Driver bit gaging equipment .................................................................................................................... 5

5.2 Driver bit gaging procedure ..................................................................................................................... 5

5.3 Driver bit inspection gage dimensions — metric ............................................................................. 6

5.4 Driver bit inspection gage dimensions — inch ................................................................................. 6

6 Driver bit torque test .................................................................................................................................. 7

6.1 Driver bit torque test apparatus ............................................................................................................ 7

6.2 Torque test fixture ....................................................................................................................................... 7

6.3 Torque wrench/Torsion machine ......................................................................................................... 9

7 Driver bit torque test procedure ............................................................................................................ 9

© ISO 2021 – All rights reserved iii
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ISO/DIS 4580:2021(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 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 the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the World

Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see

www.iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles,

Subcommittee SC 4, Aerospace fastener systems.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www.iso.org/members.html.
iv © ISO 2021 – All rights reserved
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ISO/DIS 4580:2021(E)
Introduction

ISO draws attention to the fact that it is claimed that compliance with this document may involve the use

of a US patent “DRIVE SYSTEM WITH FULL SURFACE DRIVE CONTACT” 10,697,499 B2. ISO takes no

position concerning the evidence, validity and scope of this patent right.

The holder of this patent right has assured ISO that he/she is willing to negotiate licences under

reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this

respect, the statement of the holder of this patent right is registered with ISO. Information may be

obtained from:
Acument Intellectual Properties, LLC
6125 Eighteen Mile Road
Sterling Heights, MI 48314
U.S.A.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights other than those identified above. ISO shall not be held responsible for identifying any or all

such patent rights.
Acument Intellectual Properties, LLC
6125 Eighteen Mile Road
Sterling Heights, MI 48314
U.S.A.
© ISO 2021 – All rights reserved v
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ISO/DIS 4580:2021(E)
Aerospace — Internal drive, TORX PARALOBE, driver bit —
Geometrical definition, gaging and technical requirements
1 Scope

This international standard specifies basic dimensions, characteristics and engineering requirements for

® ®
TORX PARALOBE driver bits used with aerospace fasteners.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 4579, Aerospace — Drives, internal, TORX PARALOBE drive — Geometrical definition, gaging and

technical requirements
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at
...