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GB/T 6187.1-2016 PDF in English


GB/T 6187.1-2016 (GB/T6187.1-2016, GBT 6187.1-2016, GBT6187.1-2016)
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GB/T 6187.1-2016: PDF in English (GBT 6187.1-2016)

GB/T 6187.1-2016
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 21.060.20
J 13
Replacing GB/T 6187.1-2000
Prevailing Torque Type All-metal Hexagon Nuts
with Flange, Style 2
[ISO 7044.2012, Prevailing Torque Type All-metal Hexagon Nuts with Flange,
Style 2 – Product Grades A and B, MOD]
ISSUED ON. FEBRUARY 24, 2016
IMPLEMENTED ON. JUNE 1, 2016
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 6 
2 Normative References ... 6 
3 Dimensions ... 7 
4 Technical Requirements and Reference Standards ... 9 
5 Designation ... 10 
Annex A (Normative) Gauging of Hexagon Nuts with Flange ... 11 
Foreword
This Part of GB/T 6187 belongs to a complete group of national standards “Prevailing
Torque Type Hexagon Nuts”. It comprises the following.
-- GB/T 889.1 Prevailing Torque Type Hexagon Nuts (with Non-metallic Insert),
Style 1
-- GB/T 889.2 Prevailing Torque Type Hexagon Nuts (with Non-metallic Insert),
Style 1--Fine Pitch Thread
-- GB/T 6172.2 Prevailing Torque Type Hexagon Thin Nuts (with Non-metallic
Insert)
-- GB/T 6182 Prevailing Torque Type Hexagon Nuts (with Non-metallic Insert),
Style 2
-- GB/T 6183.1 Prevailing Torque Type Hexagon Nuts with Flange (with Non-
metallic Insert), Style 2
-- GB/T 6183.2 Prevailing Torque Type Hexagon Nuts with Flange (with Non-
metallic Insert), Style 2 – Fine Pitch Thread
-- GB/T 6184 Prevailing Torque Type All-metal Hexagon Nuts, Style 1
-- GB/T 6185.1 Prevailing Torque Type Hexagon Nuts With Flange (with Non-
metallic Insert), Style 2
-- GB/T 6185.2 Prevailing Torque Type All-metal Hexagon Nuts with Flange, Style
2 – Fine Pitch Thread
-- GB/T 6187.1 Prevailing Torque Type All-metal Hexagon Nuts with Flange,
Style 2
-- GB/T 6187.2 Prevailing Torque Type All-metal Hexagon Nuts with Flange,
Style 2 – Fine Pitch Thread
This Part is the 1st Part of GB/T 6187.
This Part was drafted in accordance with the rules given in GB/T 1.1-2009.
This Part replaces GB/T 6187.1-2000, Prevailing Torque Type All-metal Hexagon Nuts
with Flange. Compared with GB/T 6187.1-2000, the main technical differences are as
follows.
-- it changes the name of the standard;
-- it deletes “If, in special cases, specifications other than those listed in this
-- it changes the name of the standard; and
-- it deletes the Bibliography of ISO 7044.
This Part was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of the National Standardization Technical
Committee on Fasteners (SAC/TC 85).
The responsible drafting organization of this Part. China Productivity Center for
Machinery.
The participating drafting organization of this Part. Dongfeng Commercial Vehicles Co
Ltd. Dongfeng Commercial Vehicles Technology Centre.
This Part shall be interpreted by the Secretariat of National Standardization Technical
Committee on Fasteners.
The previous editions replaced by this Part are as follows.
-- GB/T 6187-1986; and
-- GB/T 6187.1-2000.
Prevailing Torque Type All-metal Hexagon Nuts
with Flange, Style 2
1 Scope
This Part of GB/T 6187 specifies the dimensions, technical requirements and
designation of prevailing torque type all-metal hexagon nuts with flange, style 2.
This Part applies to prevailing torque type all-metal hexagon nuts, style 2, product
grades A and B, with thread M5 to M20, and of property class 8, 10 and 12. Product
grade A is used for nuts with D ≤ 16 mm; and product grade B is used for nuts with D >
16 mm.
Note. The dimensions of the nuts correspond to those given in GB/T 6177.1 plus prevailing
torque feature.
2 Normative References
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition dated applies to this document. For
undated references, the latest edition of the referenced document (including any
amendments) applies to this Standard.
GB/T 90.1 Fasteners – Acceptance Inspection (GB/T 90.1-2002, ISO 3269.2000,
IDT)
GB/T 90.2 Fasteners – Marking and Packaging
GB/T 193 General Purpose Metric Screw Threads – Diameters and Pitches (GB/T
193-2003, ISO 261.1998, MOD)
GB/T 1237 Designation System for Fasteners (GB/T 1237-2000, eqv. ISO
8991.1986)
GB/T 3098.2 Mechanical Properties of Fasteners – Nuts (GB/T 3098.2-2015, ISO
898-2.2012, MOD)
GB/T 3098.9 Mechanical Properties of Fasteners – Prevailing Torque Type Steel
Nuts (GB/T 3098.9-2010, ISO 2320.2008, IDT)
GB/T 3103.1 Essential Oils and Aromatic Extracts – Determination of Residual
Benzene Content (GB/T 3103.1-2002, ISO 4759-1.2000, IDT)
GB/T 5267.1 Fasteners – Electroplated Coatings (GB/T 5267.1-2002, ISO
4042.1999, IDT)
GB/T 5267.2 Fasteners – Non-electrolytically Applied Zinc Flake Coatings (GB/T
5267.2-2002, ISO 10683.2000, IDT)
GB/T 5276 Fasteners – Bolts, Screws, Studs and Nuts – Symbols and Description
of Dimensions (GB/T 5276-2015, ISO 225.2010, MOD)
GB/T 5779.2 Fasteners - Surface Discontinuities – Nuts (GB/T 5779.2-2000, ISO
6157-2.1995, IDT)
GB/T 6177.2 Hexagon Nuts with Flange, Style 2 – Fine Pitch Thread (GB/T
6177.2-2016, ISO 10663.2012, MOD)
GB/T 9145 General Purpose Metric Screw Threads – Limits of Sizes for the
Screw Threads of Medium Quality and Preferable Plan (GB/T 9145-2003, ISO 965-
2.1998, MOD)
GB/T 16938 Fasteners – General Requirements for Bolts Screws Studs and Nuts
(GB/T 16938-2008, ISO 8992.2005, IDT)
3 Dimensions
See Figure 1 and Table 1 for dimensions of nuts.
Symbols and descriptions of dimensions are specified in GB/T 5276.
......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.