Standard
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AS 1014-1986
[Current]Gauging of metric screw threads
Specifies requirements for gauges for single start parallel general purpose metric screw threads manufactured to either AS 1721 or AS 1275. It covers types of gauges, inspection of screw threads, design features of screw gauges, material and hardness requirements, and limits and tolerances of gauging elements, and is technically identical with ISO 1502, ISO General Purpose Metric Screw Threads - Gauging. Appendices give notes on the function, use and checking of gauges, the bases for the gauge deviations and tolerances, and detailed examples of deriving specific gauge limits.
Published: 06/01/1986
Pages: 30
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
1 SCOPE AND GENERAL
1.1 SCOPE
1.2 APPLICATION
1.3 REFERENCED DOCUMENTS
1.4 DEFINITIONS
1.5 SYMBOLS
1.6 TYPES OF GAUGES
1.6.1 General
1.6.2 Gauges for external threads and associated check and setting gauges
1.6.2.1 Screw gauges
1.6.2.2 Associated check and setting gauges
1.6.2.3 Plain gauges for checking the major diameter
1.6.3 Gauges and internal threads
1.7 MATERIALS AND HARDNESS
1.7.1 Material
1.7.2 Hardness
1.8 REFERENCE TEMPERATURE
1.9 MARKING
2 INSPECTION OF SCREW THREADS
2.1 SCOPE OF SECTION
2.2 GENERAL CONSIDERATIONS
2.3 GAUGING OF SCREW THREADS
2.3.1 General
2.3.2 Gauging of external threads
2.3.3 Gauging of internal threads
2.3.4 Gauge wear
2.4 DISPUTES
3 DESIGN FEATURES OF SCREW GAUGES
3.1 SCOPE OF SECTION
3.2 GENERAL CONSTRUCTION
3.2.1 Gauge blanks and handles
3.2.2 Gauging surfaces
3.2.3 Axial length of gauge thread
3.3 BREAKING OF SHARP EDGES
3.3.1 General
3.3.2 Feather edges
3.4 DIRT GROOVES
3.5 THREAD PROFILES
3.5.1 Thread profiles with complete flanks
3.5.1.1 Screw plug gauges, check plug gauges and setting plugs
3.5.1.2 Screw ring and calliper gauges
3.5.2 Thread profiles with truncated flanks
3.5.2.1 Screw plug gauges, check plug gauges and setting plugs
3.5.2.2 Screw ring and calliper gauges
3.5.2.3 Symmetry of clearance groove
3.5.2.4 Width of clearance groove
4 DEVIATIONS AND TOLERANCES OF GAUGES
4.1 SCOPE OF SECTION
4.2 PITCH ERRORS
4.3 FLANK ANGLE ERRORS
4.4 PERMISSIBLE DEVIATIONS FOR GAUGES FOR EXTERNAL THREADS
4.4.1 General
4.4.2 Limits for GO solid screw ring gauges
4.4.3 Limits for NOT GO solid screw ring gauges
4.4.4 Limits for GO and NOT GO adjustable screw ring and calliper gauges
4.4.5 Limits for GO and NOT GO plain ring and calliper gauges
4.5 PERMISSIBLE DEVIATIONS FOR GAUGES FOR INTERNAL THREADS
4.5.1 General
4.5.2 Limits for GO screw plug gauges
4.5.3 Limits for NOT GO screw plug gauges
4.5.4 Limits for GO and NOT GO plain plug gauges
4.6 LIMITS FOR SETTING PLUG AND CHECK PLUG GAUGES
4.6.1 General
4.6.2 Limits for GO screw check plugs for new GO solid screw ring gauges and single length setting plugs for GO screw calliper gauges
4.6.3 Limits for NOT GO screw check plugs for new GO solid screw ring gauges
4.6.4 Limits for double length setting plugs for adjustable GO screw ring gauges
4.6.5 Limits for wear check plugs for GO screw ring gauges (solid and adjustable)
4.6.6 Limits for GO screw check plugs for new NOT GO solid screw ring gauges
4.6.7 Limits for NOT GO screw check plugs for new NOT GO solid screw ring gauges
4.6.8 Limits for single length setting plugs for NOT GO screw calliper gauges
4.6.9 Limits for double length setting plugs for NOT GO adjustable screw ring gauges
4.6.10 Limits for wear check plugs for NOT GO screw ring gauges (solid and adjustable)
4.6.11 Limits for GO and NOT GO plain check plugs (for checking the minor diameter of solid ring gauges)
APPENDIX A
A1 SCOPE
A2 THE PRINCIPLE OF GAUGING
A2.1 General
A2.2 The ‘Taylor Principle’
A2.3 Permissible departures from the Taylor Principle
A3 FUNCTION AND USE OF GAUGES
A3.1 Gauges for external threads
A3.1.1 Solid and adjustable GO screw ring gauges
A3.1.2 Solid and adjustable NOT GO screw ring gauges
A3.1.3 Adjustable GO screw calliper gauges
A3.1.4 Adjustable NOT GO screw calliper gauges
A3.1.5 GO and NOT GO plain ring and calliper gauges
A3.2 Gauges for internal threads
A3.2.1 GO screw plug gauges
A3.2.2 NOT GO screw plug gauges
A3.2.3 GO and NOT GO plain plug gauges
A3.3 Setting and check plug gauges
A3.3.1 Single length setting plug gauges
A3.3.2 Double length setting plug gauges
A3.3.3 Screw check plug gauges
A3.3.4 NOT GO wear check plug gauges
A3.3.5 GO and NOT GO plain plug gauges
A4 CHECKING (VERIFICATION) OF GAUGES
APPENDIX B
B1 SCOPE
B2 DEVIATION FOR GAUGES FOR EXTERNAL THREADS
B2.1 Deviations for screw gauges and associated check and setting plugs
B2.2 Deviations for plain GO and NOT GO gauges for the major diameter
B3 DEVIATIONS FOR GAUGES FOR INTERNAL THREADS
B3.1 Deviations for screw gauges
B3.2 Deviations for plain GO and NOT GO gauges for the minor diameter
APPENDIX C
C1 SCOPE
C2 GAUGES FOR EXTERNAL THREADS AND ASSOCIATED CHECK AND SETTING PLUGS
C2.1 General
C2.2 Solid ‘GO’ screw ring gauge and associated check plugs
C2.2.1 Solid ‘GO’ screw ring gauge (see Clause 4.4.2 and Table 4.3)
C2.2.2 ‘GO’ screw check plug for new solid ‘GO’ screw ring gauge (see Clause 4.6.2 and Table 4.9)
C2.2.3 ‘NOT GO’ screw check plug for new solid ‘GO’ screw ring gauge (see Clause 4.6.3 and Table 4.10)
C2.2.4 Wear check plug for solid ‘GO’ screw ring gauge (see Clause 4.6.5 and Table 4.12)
C2.2.5 ‘GO’ and ‘NOT GO’ plain check plugs for the minor diameter of new solid ’GO’ screw ring gauge (see Clause 4.6.11 and Table 4.18)
C2.3 Solid ‘NOT GO’ screw ring gauge and associated check plugs
C2.3.1 Solid ‘NOT GO’ screw ring gauge (see Clause 4.4.3 and Table 4.4)
C2.3.2 ‘GO’ screw check plug for new solid ‘NOT GO’ ring gauge (see Clause 4.6.6 and Table 4.13)
C2.3.3 ‘NOT GO’ screw check plug for new solid ‘NOT GO’ ring gauge (see Clause 4.6.7 and Table 4.14)
C2.3.4 ‘GO’ and ‘NOT GO’ plain check plugs for the minor diameter of new solid ‘NOT GO’ screw ring gauge (see Clause 4.6.11 and Table 4.18)
C2.4 ‘GO’ and ‘NOT GO’ adjustable screw ring and calliper gauges and associated setting plugs
C2.4.1 ‘GO’ and ‘NOT GO’ adjustable screw ring and calliper gauges (see Clause 4.4.4)
C2.4.2 Double length setting plugs for adjustable ‘GO’ screw ring gauges (see Clause 4.6.4 and Table 4.11)
C2.4.3 Single length setting plug for adjustable ‘GO’ screw calliper gauges (see Clause 4.6.2 and Table 4.9)
C2.4.4 Double length setting plugs for ‘NOT GO’ adjustable screw ring gauges (see Clause 4.6.9 and Table 4.16)
C2.4.5 Single length setting plug for adjustable ‘NOT GO’ screw calliper (see Clause 4.6.8 and Table 4.15)
C2.5 ‘GO’ and ‘NOT GO’ plain ring and calliper gauges for checking the major diameter of product threads (see Clause 4.4.5 and Table 4.5)
C3 GAUGES FOR INTERNAL THREADS
C3.1 General
C3.2 ‘GO’ screw plug gauge (see Clause 4.5.2 and Table 4.6)
C3.3 ‘NOT GO’ screw plug gauge (see Clause 4.5.3 and Table 4.7)
C3.4 ‘GO’ and ‘NOT GO’ plain plug gauges for checking the minor diameter (see Clause 4.5.4 and Table 4.8)
C4 DEVIATIONS FOR ERRORS IN PITCH AND FLANK ANGLES
C4.1 General
C4.2 Pitch errors
C4.3 Flank angle errors
APPENDIX D
Cited references in this standard
AS XXXX
Glossary of Terms for Screw Threads∗
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