Sign In |Help & Support
ALL SECTORS
  • ALL SECTORS
  • GB(National Standard)
  • CB(Shipping)
  • CECS(Engineering Construction)
  • CJ(Urban Construction)
  • CY(News and Publication)
  • DB(Provincial Standard)
  • DL(Electricity & Power)
  • DZ(Geology & Mineralogy)
  • FZ(Spinning & Textile)
  • GA(Public Security)
  • HB(Aviation)
  • HG(Chemical Industry)
  • HJ(Environmental Protection)
  • JB(Machinery)
  • JC(Building Materials)
  • JG(Building & Construction)
  • JJ(Metering)
  • JT(Highway & Transportation)
  • LY(Forestry)
  • MT(Coal)
  • NB(Energy)
  • NY(Agriculture)
  • QB(Light Industry)
  • QC(Automobile & Vehicle)
  • QJ(Aerospace)
  • SH(Petrochemical)
  • SJ(Electronics)
  • SL(Water Resources)
  • SN(Commodity Inspection)
  • SY(Oil & Gas)
  • TB(Railway & Train)
  • YB(Ferrous Metallurgy)
  • YC(Tobacco)
  • YD(Telecommunication)
  • YY(Medical Device)
Database: 365,228(8 Aug 2026)
unified threads threads unified tolerances scopethis standard civil coal refractory brick zinc-aluminum composite coated steel guardrail
GB/T 20666-2006 in English

GB/T 20666-2006 in English

VALID

Unified screw threads - Tolerances

  • Issued on:2007-03-26
  • Implemented on:2007-07-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $450.00
$437.00
Standard No: GB/T 20666-2006
Document status: VALID
Title in English: Unified screw threads - Tolerances
Title in Chinese: 统一螺纹 公差
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 1~3 business days
Issued on: 2007-03-26
Implemented on: 2007-07-01
ICS Classification: 21.040.20-Inch screw threads
Chinese Classification: J04-Basic standards and general methods
Professional Classification: GB-National Standard
Related Keywords: unified threads
threads
unified
tolerances
scopethis standard
Related Topics: Uniform standards
consistency tolerance
thread tolerance iso
consistency tolerance
pattern
thread standard tolerance iso
Thread 4h5h tolerance
GBT20666
GB/T 20666-2006
Unite

《GB/T 20666-2006统一螺纹 公差》由TC108(全国螺纹标准化技术委员会)归口,主管部门为国家标准化管理委员会。
本标准规定了统一螺纹的公差和标记。 本标准适用于一般用途的机械紧固螺纹联结。


Scope

This standard specifies the tolerances and markings for unified threads. This standard applies to mechanically fastened threaded connections for general purposes.

Sample only — not a preview of GB/T 20666-2006
Page: 1 / 0
100%

Loading PDF document...

Error loading PDF. Please make sure the file is valid and try again.

We also recommend