Screw gauge limits and tolerances Limits of size for gauges for screw threads of unified form diameters 1/4 in and larger

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-09-2009

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Terms and definitions
Section 1: Unified coarse threads, UNC
Section 2: Unified fine threads, UNF
Section 3: Unified extra fine threads, UNEF
Bibliography

Describes the limits of size for the following types of gauges, setting plugs and check plugs for the various classes of standard Unified Coarse (UNC), Unified Fine (UNF) and Unified Extra Fine (UNEF) threads specified in BS 1580-1.

This British Standard specifies the limits of size for the following types of gauges, setting plugs and check plugs for the various classes of standard Unified Coarse (UNC), Unified Fine (UNF) and Unified Extra Fine (UNEF) threads specified in BS 1580-1. GO and NOT GO screw gauges: screw plug gauges; solid screw ring gauges; adjustable screw ring gauges; adjustable screw calliper gauges. Setting plugs for GO and NOT GO adjustable screw ring gauges and for GO and NOT GO adjustable screw calliper gauges: double length type; single length type. GO and NOT GO check plugs for solid screw ring gauges. GO and NOT GO plug gauges and GO and NOT GO calliper gauges for the crest diameters of product threads. NOTE The values tabulated in this standard have been derived from the application of the tolerances specified in BS 919-1 to the limits of size given in BS 1580-1 , and reference should be made to the former standard for general information, details of the form of thread for Unified screw gauges, and tolerances on pitch and thread angle.

Committee	FME/9
DevelopmentNote	Supersedes BS 919-4(1964) & 07/30158519 DC. (11/2007) Reviewed and confirmed by BSI, October 2012. (09/2012)
DocumentType	Standard
Pages	70
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 919-4:1964

BS 6528:1984	Glossary of terms for cylindrical screw threads
BS 1580-1:2007	Unified screw threads Screw threads with diameters ¼ in and larger. Requirements

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BS 919-4:2007

Screw gauge limits and tolerances Limits of size for gauges for screw threads of unified form diameters 1/4 in and larger

Table of Contents

Abstract

Scope

General Product Information

Standards Referencing This Book

Category

Subcategory