British Association (B.A.) screw threads. Requirements

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

09-30-2008

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Terms and definitions and symbols
4 Profile of British Association (B.A.) screw thread
5 Basic sizes of B.A. threads
6 Tolerance classes and limits of sizes, and tolerances, for B.A
  threads
7 Gauges
Annexes
Annex A (informative) - Basis of sizes of B.A. threads
Annex B (informative) - Bases of allowances and tolerances for B.A
        threads
Annex C (informative) - Effect of errors in pitch and flank angle
        on the effective diameter
Annex D (informative) - Approximate inch equivalents of B.A. thread
        sizes
Bibliography

Describes limits of sizes, and tolerances, for single start parallel screw threads of British Association (B.A.) form.

This British Standard specifies limits of sizes, and tolerances, for single start parallel screw threads of British Association (B.A.) form. It is not applicable to screw threads associated with interference fits, such as those on the “metal ends?? of studs and in the corresponding tapped holes. This British Standard specifies the following: basic sizes for B.A. threads, sizes 0B.A. to 16B.A.; limits of size, and tolerances, for close class and normal class external threads of sizes 0B.A. to 10B.A.; limits of size, and tolerances, for normal class external threads of sizes 11B.A. to 16B.A.; limits of size, and tolerances, for a single class of internal threads of sizes 0B.A. to 16B.A.

Committee	FME/9
DevelopmentNote	Supersedes BS 93(1951) and 08/30173466 DC. (09/2008)
DocumentType	Standard
Pages	26
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 93:1951

BS 6528:1984	Glossary of terms for cylindrical screw threads
PD 6494:1980	Mismatch of screw thread systems

View more information

US$231.88

Excluding Tax where applicable

Product format

I agree to the DRM document license rules apply against the PDF selection made.

Please confirm that you agree to the document license rules for this document.

I agree to the document license rules .

Please confirm that you agree to the document license rules for this document.

Access your standards online with a subscription

Features

Simple online access to standards, technical information and regulations.
Critical updates of standards and customisable alerts and notifications.
Multi-user online standards collection: secure, flexible and cost effective.

Learn more on subscription solutions

Get in touch with us

BS 93:2008

British Association (B.A.) screw threads. Requirements

Table of Contents

Abstract

Scope

General Product Information

Standards Referencing This Book

Category

Subcategory