EN ISO 10424-2:2007

Foreword
Introduction
1 Scope
2 Conformance - Units of measurement
3 Normative references
4 Terms, abbreviated terms, definitions and symbols
   4.1 Terms and definitions
   4.2 Design types and definitions
   4.3 Abbreviations and symbols
5 Information to be supplied by purchaser
6 Threading
   6.1 Thread profile and dimensions
   6.2 Bevels for drill collars and tools that mate directly
        with drill collars
   6.3 Low-torque feature
7 Product optional features
   7.1 General
   7.2 Stress-relief features
   7.3 Benchmarks
   7.4 Surface treatment
   7.5 Cold working
   7.6 Break-in
8 Product gauging
   8.1 Gauging
   8.2 Stand-off measurement
   8.3 Gauge contact points
   8.4 Lead measurement
   8.5 Taper measurement
   8.6 Thread height measurement and gauges
9 Gauge relationships for rotary shouldered connections
   9.1 Gauge relationship
   9.2 Gauge specifications
10 Gauge calibration
   10.1 Calibration system
   10.2 Acceptance criteria
   10.3 Gauge measurement methods
   10.4 Gauge certification
Annex A (informative) Tables in USC units
Annex B (informative) Care and use of regional master
        gauges
Annex C (normative) Shipment of reference master
        gauges
Annex D (normative) Care and use of working gauges
Annex E (informative) API gauge certification
        requirements
Annex F (informative) Other rotary shouldered
        connections
Annex G (informative) USC units conversion table
Annex H (informative) Recommended practice for
        gauging new rotary shouldered connections
Annex I (informative) Calculations
Annex J (informative) API grand and regional master
        rotary connection gauges

ISO 10424-2:2007 specifies requirements on rotary shouldered connections for use in petroleum and natural gas industries, including dimensional requirements on threads and thread gauges, stipulations on gauging practice, gauge specifications, as well as instruments and methods for inspection of thread connections. These connections are intended primarily for use in drill-string components.Other supplementary specifications can be agreed between interested parties for special tolerance requirements, qualification, testing, inspection and finishing.ISO 10424-2:2007 is applicable to the following preferred rotary shouldered connection designs: number (NC) style; regular (REG) style; full hole (FH) style. These are traceable to an internationally supported system of gauges and calibration.