JB/T 8824.1-2012Tool for unified threads - Part 1: Taps (English PDF)
统一螺纹刀具 第1部分：丝锥
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
May 24, 2012
Implementation date
November 1, 2012
Scope
JB/T 8824.1-2012 is the English-translated version of 统一螺纹刀具 第1部分：丝锥.
JB/T 8824.1-2012 is the recommended Chinese machinery industry standard that covers taps for unified threads, giving their type, their dimensions and the basic requirements for marking.
The taps it applies to are those cutting unified threads in the numbered sizes and in the fractional sizes from 1/4 to 4. Type, size and marking are the three heads under which its basic requirements are arranged.
It carries Chinese classification J41 and international classification 25.100.50. Among the standards it quotes are GB/T 20666, GB/T 20668, GB/T 20670, JB/T 8824.2 and JB/T 8824.3. It supersedes JB/T 8824.1-1998.
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Document preview — JB/T 8824.1-2012
National Standard of the People's Republic of China
- ICS
- 25.100.50
- Replacing
- JB/T 8824.1-1998
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- Foreword
- Scope
- Normative references
- About this standard
- Related standards
- Classification and status
1 Foreword
JB/T 8824.1-2012 was issued by MIIT on 24 May 2012 and has been in force since 1 November 2012.
It replaces the earlier edition JB/T 8824.1-1998.
It is one of 13 parts of the JB/T 8824 series.
2 Scope
This standard is the recommended Chinese machinery industry standard that covers taps for unified threads, giving their type, their dimensions and the basic requirements for marking. The taps it applies to are those cutting unified threads in the numbered sizes and in the fractional sizes from 1/4 to 4. Type, size and marking are the three heads under which its basic requirements are arranged. It carries Chinese classification J41 and international classification 25.100.50. Among the standards it quotes are GB/T 20666, GB/T 20668, GB/T 20670, JB/T 8824.2 and JB/T 8824.3. It supersedes JB/T 8824.1-1998.
3 Normative references
JB/T 8824.1-2012 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 20666
GB/T 20668
GB/T 20669
GB/T 20670
JB/T 8824.2
JB/T 8824.3
4 About this standard
Issued by: MIIT
English translation: about 15 pages
5 Related standards
Other parts of this standard:
JB/T 8824.2-1998 — Unified thread taps - Thread tolerances
JB/T 8824.2-2012 — 2: Manufacturing tolerances on the threaded portion of taps
JB/T 8824.3-1998 — Unified thread taps - Technical specifications
JB/T 8824.3-2012 — 3: Technical specification for taps
JB/T 8824.4-1998 — Unified thread nut taps
JB/T 8824.4-2012 — 4: Nut taps
JB/T 8824.5-1998 — Unified thread circular dies
JB/T 8824.5-2012 — 5: Circular screwing dies
JB/T 8824.6-1998 — Unified thread flat thread rolling dies
JB/T 8824.6-2012 — 6: Screw plate
JB/T 8824.7-1998 — Unified thread thread rolling wheels
JB/T 8824.7-2012 — 7: Thread rolling die
Other editions:
JB/T 8824.1-1998 (earlier edition)
6 Classification and status
International classification (ICS): 25.100.50
Prefix JB/T: recommended standard.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 20666Unified screw threads -- Tolerances
- GB/T 20668Unified screw threads -- Basic dimensions
- GB/T 20669Unified screw threads -- Profiles
- GB/T 20670Unified screw threads -- General plan
- JB/T 8824.2Tool for unified threads - Part 2: Manufacturing tolerances on the threaded portion of taps
- JB/T 8824.3Tool for unified threads - Part 3: Technical specification for taps
Similar standards
Editions of JB/T 8824.1
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 8824.1-2012 | Tool for unified threads - Part 1: Taps | current edition | Current |
| JB/T 8824.1-1998 | Tool for unified threads - Part 1: Taps | previous edition | Superseded |
This page sells the current edition, JB/T 8824.1-2012. Earlier editions are listed for reference only.
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Related Standards
GB/T 20666-2006 — Unified screw threads -- Tolerances
GB/T 20668-2006 — Unified screw threads -- Basic dimensions
GB/T 20669-2006 — Unified screw threads -- Profiles
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