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ASME B1.21M : 1997

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

METRIC SCREW THREADS - MJ PROFILE
Available format(s)

Hardcopy , PDF

Superseded date

23-08-2021

Language(s)

English

Published date

01-01-2013

Preview

Foreword
Standards Committee Roster
1 General
2 Profile of Thread
3 Series of Threads
4 Thread Characteristics
5 Dimensional Accommodation of Coatings and Platings
6 Designation of Threads
7 Acceptability
Appendices
A - Coating of Threads
B - Symbols for MJ Thread Dimensions and Tolerances

Describes the basic triangular profile for the MJ thread form; provides a system of designations; lists the standard series of diameter/pitch combinations for diameters from 1.6 to 200 mm; and specifies limiting dimensions and tolerances.

DocumentType
Standard
ISBN
079182487X
Pages
62
ProductNote
Reconfirmed 1997
PublisherName
American Society of Mechanical Engineers
Status
Superseded
SupersededBy

ISO 5855-2:1999 Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts
ISO 5855-1:1999 Aerospace MJ threads Part 1: General requirements
ASME B1.15 : 1995 UNIFIED INCH SCREW THREADS (UNJ THREAD FORM)
ISO 5855-3:1999 Aerospace MJ threads Part 3: Limit dimensions for fittings for fluid systems
ISO 261:1998 ISO general purpose metric screw threads General plan
ISO 965-1:2013 ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data

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