ISO 10424-2-2007 PDF

Full title and description

ISO 10424-2:2007 — Petroleum and natural gas industries — Rotary drilling equipment — Part 2: Threading and gauging of rotary shouldered thread connections. This part of ISO 10424 specifies dimensional requirements for rotary-shouldered threads, gauge definitions and calibration practice, gauging procedures, and inspection instruments and methods for drill‑string rotary-shouldered connections (preferred connection styles: NC, REG, FH).

Abstract

ISO 10424-2:2007 sets out requirements for threading and gauging of rotary shouldered connections used in the petroleum and natural gas industries, including thread profiles and dimensions, gauge specifications, rules for gauging practice, and methods and instruments for inspection of thread connections intended primarily for drill‑string components. Supplementary or special tolerances, qualification and testing arrangements can be agreed between purchaser and supplier.

General information

• Status: Withdrawn (ISO record shows the edition is listed as withdrawn).
• Publication date: November 2007 (ISO edition 1, published November 2007; many national/adopted versions show publication/adoption dates in late 2007 — mid‑2008).
• Publisher: International Organization for Standardization (ISO); adopted by various national bodies as EN ISO / BS EN variants.
• ICS / categories: 75.180.10 (Exploratory, drilling and extraction equipment).
• Edition / version: Edition 1 (2007).
• Number of pages: ISO bibliographic record lists 99 pages; national/adopted publications and distributor listings show varying page counts (typically in the 100–114 page range) depending on front/back matter and national forewords.

Scope

This part of ISO 10424 applies to rotary‑shouldered thread connections used in drill‑string components for petroleum and natural gas industries. It covers thread profile and dimensional requirements, gauging systems and calibration, gauging practice (how to apply and interpret gauges), gauge construction and calibration traceability, and recommended inspection instruments and procedures. The standard targets common rotary shouldered connection designs — number (NC), regular (REG) and full‑hole (FH) styles — and is intended to facilitate interchangeability and reliable inspection across manufacturers and users.

Key topics and requirements

• Definition of thread profiles and dimensional tolerances for rotary shouldered connections (NC, REG, FH styles).
• Specifications for thread gauges (grand master, reference master and working gauges), including calibration and traceability.
• Gauging practice: how and when to apply gauges, acceptance/rejection criteria and interpretation rules.
• Inspection instruments and methods for checking thread form, dimensions and fit.
• Optional product features and purchaser‑supplied information (stress‑relief features, benchmarks, surface treatment, low‑torque features, information to be supplied by purchaser).

Typical use and users

Used by oilfield equipment manufacturers, drill‑string component suppliers, quality and inspection laboratories, rig operators and maintenance teams, procurement/specification engineers, and calibration houses responsible for gauge maintenance and certification. The standard helps ensure interchangeability of rotary‑shouldered connections and consistent inspection practice across the supply chain.

Related standards

ISO 10424 is a multi‑part series; closely related documents include ISO 10424‑1 (Rotary drill stem elements) and other ISO/TC 67 drilling and production equipment standards. The part is commonly adopted as EN ISO / BS EN national variants (EN ISO 10424‑2:2007 / BS EN ISO 10424‑2:2007) and has corresponding national implementations and related API specifications that cover drill‑string components.

Keywords

rotary drilling equipment; rotary shouldered thread; thread gauging; thread gauges; drill‑string connections; NC REG FH; inspection; calibration; petroleum and natural gas industries.

FAQ

Q: What is this standard?

A: ISO 10424‑2:2007 is the ISO specification that defines threading, gauging and inspection requirements for rotary shouldered thread connections used in drill‑string components.

Q: What does it cover?

A: It covers thread profiles and dimensions, gauge types and calibration, gauging practice and acceptance criteria, instruments and inspection methods, and related purchaser information and optional product features for rotary‑shouldered connections (NC, REG, FH).

Q: Who typically uses it?

A: Manufacturers of drill‑string components, rig operators and maintenance crews, QA/QC and inspection laboratories, purchasers/specifiers in the oil & gas sector, and calibration houses for gauges.

Q: Is it current or superseded?

A: ISO's bibliographic record shows ISO 10424‑2:2007 as withdrawn. Many regions/adopting bodies published EN/ national variants based on the 2007 text and some later national editions or adoptions carry different effective dates; users should consult their national standards body or ISO for the authoritative status in their country and to identify any replacement or updated normative documents.

Q: Is it part of a series?

A: Yes — ISO 10424 is a series for rotary drilling equipment. Part 1 covers rotary drill stem elements (ISO 10424‑1) and Part 2 covers threading and gauging of rotary shouldered thread connections; other related ISO/TC 67 standards govern drilling and production equipment and inspection/maintenance practices.

Q: What are the key keywords?

A: Rotary‑shouldered thread, thread gauging, gauge calibration, drill‑string connections, rotary drilling equipment, NC/REG/FH threads, inspection methods.