Inch tread

ASME B1.1-2003
[Revision of ASME B1.1-1989 (R2001)]

Unified Inch Screw Threads
(UN and UNR Thread Form)

A N A M E R I C A N N AT I O N A L STA N DA R D

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A N

A M E R I C A N

N A T I O N A L

S T A N D A R D

UNIFIED INCH SCREW THREADS
(UN and UNR Thread Form)

ASME B1.1-2003
[Revision of ASME B1.1-1989 (R2001)]
--`,,`,``,,`````,,```,,````,,,`,-`-`,,`,,`,`,,`---

Copyright ASME International Provided by IHS under license with ASME No reproduction or networkingpermitted without license from IHS

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Date of Issuance: September 30, 2004

The 2004 edition of this Standard is being issued with an automatic addenda subscription service. The use of addenda allows revisions made in response to public review comments or committee actions to be published asnecessary. This Standard will be revised when the Society approves the issuance of a new edition. There will be no written interpretations of the requirements of this Standard issued to this edition.

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Copyright © 2004 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All rights reserved Printed in U.S.A.

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CONTENTS
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Committee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 General . . . . . . . . . . . . . . . . . ....