GB/T 16824.1-2023_English: PDF (GB/T16824.1-2023)
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GB/T 16824.1-2023 | 170 |
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Hexagon washer head tapping screws
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GB/T 16824.1-2016 | 90 |
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Hexagon washer head tapping screws
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GB/T 16824.1-1997 | 239 |
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Hexagon head tapping screws with collar
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Standard ID | GB/T 16824.1-2023 (GB/T16824.1-2023) | Description (Translated English) | Hexagon washer head tapping screws | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | J13 | Classification of International Standard | 21.060.10 | Word Count Estimation | 12,173 | Date of Issue | 2023-05-23 | Date of Implementation | 2023-12-01 | Older Standard (superseded by this standard) | GB/T 16824.1-2016 | Drafting Organization | China Machinery Productivity Promotion Center Co., Ltd., Hangzhou Advance Gearbox Group Co., Ltd., Shanghai Jiyoubiao Wu High Strength Fastener Co., Ltd., Wenling Luogang Machinery Co., Ltd., Zhejiang Huifeng Auto Parts Co., Ltd., Yuhuan Tianye Machinery Co., Ltd., Zhejiang Tiankai Industrial Co., Ltd., Product Quality Supervision and Inspection Center for General Parts of Machinery Industry | Administrative Organization | National Fastener Standardization Technical Committee (SAC/TC 85) | Proposing organization | China Machinery Industry Federation | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Management Committee | Standard ID | GB/T 16824.1-2016 (GB/T16824.1-2016) | Description (Translated English) | Hexagon washer head tapping screws | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | J13 | Classification of International Standard | 21.060.10 | Word Count Estimation | 7,731 | Date of Issue | 2016-02-24 | Date of Implementation | 2016-06-01 | Older Standard (superseded by this standard) | GB/T 16824.1-1997 | Quoted Standard | GB/T 90.1; GB/T 90.2; GB/T 1237; GB/T 3098.5; GB/T 3098.21; GB/T 3103.1; GB/T 5267.1; GB/T 5267.2; GB/T 5267.4; GB/T 5276; GB/T 5280; GB/T 16938 | Adopted Standard | ISO 7053-2011, MOD | Drafting Organization | Productivity Promotion Center in the machine | Administrative Organization | National Fastener Standardization Technical Committee (SAC/TC 85) | Regulation (derived from) | National Standard Announcement No | Proposing organization | China Machinery Industry Federation | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | Standard ID | GB/T 16824.1-1997 (GB/T16824.1-1997) | Description (Translated English) | Hexagon head tapping screws with collar | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | J13 | Classification of International Standard | 21.060.10 | Word Count Estimation | 6,641 | Date of Issue | 1997/5/29 | Date of Implementation | 1997/12/1 | Quoted Standard | GB/T 90-1985; GB 1237-1988; GB 3098.5-1985; GB/T 3103.1-1982; GB/T 5267-1985; GB/T 5280-1985 | Adopted Standard | ISO 7053-1992, IDT | Drafting Organization | Ministry of Science and Research Institute of Machinery Industry Machinery | Administrative Organization | National Standardization Technical Committee fasteners | Summary | This standard specifies the thread size for the ST 2. 2 ~ ST 8 hex flange self-tapping screws. |
GB/T 16824.1-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 21.060.10
CCS J 13
Replacing GB/T 16824.1-2016
Hexagon washer head tapping screws
六角凸缘自攻螺钉
(ISO 7053:2019, Fasteners - Hexagon washer head tapping screws,
MOD)
ISSUED ON: MAY 23, 2023
IMPLEMENTED ON: DECEMBER 1, 2023
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
Introduction ... 6
1 Scope ... 7
2 Normative references ... 7
3 Terms and definitions ... 8
4 Types and dimensions ... 8
5 Technical requirements ... 10
6 Marks and labels ... 10
7 Marking ... 11
References ... 12
Foreword
This document was drafted in accordance with the provisions of GB/T 1.1-2020
Directives for standardization - Part 1: Rules for the structure and drafting of
standardizing documents.
This document is part 1 of GB/T 16824 Hexagon head tapping screws. The following
parts of GB/T 16824 have been issued:
-- GB/T 16824.1 Hexagon washer head tapping screws;
-- GB/T 16824.2 Hexagon flange head tapping screws.
This document replaces GB/T 16824.1-2016 Hexagon washer head tapping screws.
Compared with GB/T 16824.1-2016, except for the structural adjustment and editorial
revisions, the main technical changes are as follows:
a) The radius r is changed to r1, and the dimension values are changed (see Figure
1 and Table 1; see Figure 1 and Table 1 of the 2016 edition);
b) For the surface treatment, only the mark of untreated given in the marking
example is allowed to be omitted (see Chapter 7; see Chapter 5 of the 2016
edition);
c) The requirements for marks and labels are added (see Chapter 6).
This document is modified in relation to ISO 7053:2019 Fasteners - Hexagon washer
head tapping screws.
Compared with ISO 7053:2019, the following structural adjustments are made to this
document:
-- The chapter “Marks and labels” is added;
-- Chapter 7 corresponds to Chapter 6 of ISO 7053:2019.
The technical differences between this document and ISO 7053:2019 and their reasons
are as follows:
-- ISO 8992 is replaced by the normative reference GB/T 16938 to adapt to the
technical conditions in China (see Table 2);
-- ISO 1478 is replaced by the normative reference GB/T 5280 to adapt to the
technical conditions in China (see Table 2);
Hexagon washer head tapping screws
1 Scope
This document specifies the type and dimensions, technical conditions, marks and
labels, and marking of hexagon washer head tapping screws.
This document is applicable to hexagon washer head tapping screws with thread
specifications of ST 2.2~ST 8, made of steel and stainless steel, and of grade A.
2 Normative references
The following documents contain the provisions which, through normative reference in
this document, constitute the essential provisions of this document. For the dated
referenced documents, only the versions with the indicated dates are applicable to this
document; for the undated referenced documents, only the latest version (including all
the amendments) is applicable to this document.
GB/T 90.1 Fasteners - Acceptance inspection (GB/T 90.1-2023, ISO 3269:2019,
MOD)
GB/T 90.2 Fasteners - Marking and packaging
GB/T 1237 Designation system for fasteners (GB/T 1237-2000, eqv ISO
8991:1986)
GB/T 3098.5 Mechanical properties of fasteners - Tapping screws (GB/T 3098.5-
2016, ISO 2702:2011, MOD)
GB/T 3098.21 Mechanical properties of fasteners - Stainless steel tapping screws
(GB/T 3098.21-2014, ISO 3506-4:2009, MOD)
GB/T 3103.1 Tolerances for fasteners - Bolts, screws, studs and nuts (GB/T 3103.1-
2002, idt ISO 4759-1:2000)
GB/T 5267.1 Fasteners - Electroplate coating (GB/T 5267.1-2023, ISO 4042:2022,
MOD)
GB/T 5267.2 Fasteners - Non-electrolytically applied zinc flake coatings (GB/T
5267.2-2021, ISO 10683:2018, MOD)
GB/T 5276 Fasteners - Bolts, screws, studs and nuts - Symbols and descriptions of
-- the thread specification and nominal length;
-- the stainless-steel fastener group and hardness level code;
-- the type of surface treatment;
-- the identification mark or name of the manufacturer and/or distributor;
-- The manufacturing batch number specified in GB/T 3099.4;
-- the number of packages.
7 Marking
The marking method shall be in accordance with the provisions of GB/T 1237.
Example 1: For a hexagon washer head tapping screw with a thread specification of ST3.5, a nominal
length l of 16 mm, a C-type end, and an untreated surface, which is made of steel, of product grade A,
and has the mechanical properties that are in accordance with GB/T 3098.5, the mark is as follows:
Tapping screw GB/T 16824.1 ST3.9×16
Example 2: For a hexagon washer head tapping screw with a thread specification of ST3.9, a nominal
length l of 16 mm, an R-type end, and a simply-treated surface, which is made of stainless steel, of
product grade A, and has stainless steel group and hardness level of A4-20H, the mark is as follows:
Tapping screw GB/T 16824.1 ST3.9×16 A4-20H R
......
GB/T 16824.1-2016
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 21.060.10
J 13
Replacing GB/T 16824.1-1997
Hexagon Washer Head Tapping Screws
(ISO 7053.2011, MOD)
六角凸缘自攻螺钉
ISSUED ON. FEBRUARY 24, 2016
IMPLEMENTED ON. JUNE 1, 2016
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Dimension ... 6
4 Technical Conditions and Reference Standards ... 9
5 Markings ... 9
Foreword
This Part of GB/T 16824 is one of the national standards of “Taping Screws”, such
series include.
--- GB/T 845 Cross Recessed Pan Head Tapping Screws;
--- GB/T 846 Cross Recessed Countersunk Head Tapping Screws;
--- GB/T 847 Cross Recessed Raised Countersunk Head Tapping Screws;
--- GB/T 2670.1 Hexalobular Socket Pan Head Tapping Screws;
--- GB/T 2670.2 Hexalobular Socket Countersunk Head Tapping Screws;
--- GB/T 2670.3 Hexalobular Socket Raised Countersunk (Oval) Head Tapping
Screws;
--- GB/T 5282 Slotted Pan Head Tapping Screws;
--- GB/T 5283 Slotted Countersunk Head Tapping Screws;
--- GB/T 5284 Slotted Raised Countersunk Head Tapping Screws;
--- GB/T 5285 Hexagon Head Tapping Screws;
--- GB/T 9456 Cross Recessed Hexagon Head Tapping Screws with Indentation;
--- GB/T 13806.2 For Fine Mechanics Cross Recessed Tapping Screws - Scrape
Point;
--- GB/T 16824.1 Hexagon Washer Head Tapping Screws;
--- GB/T 16824.2 Hexagon Flange Head Tapping Screws.
This Part belongs to Part 1 of GB/T 16824.
This Part was drafted as per the rules specified in GB/T 1.1-2009.
This Part replaced GB/T 16824.1-1997 Hexagon Head Tapping Screws with Collar;
compared with GB/T 16824.1-1997, this Part has the major technical changes as
follows.
--- Increase the Type-R end (Chapter 3);
--- Dimension a is measured from the small diameter of the first circle of perfect
thread (Figure 1);
--- Increase the provisions of stainless steel materials, mechanical performance as
per GB/T 3098.21, surface simplified treatment and passivation treatment as per
GB/T 5267.4 (Table 2);
--- Increase the provisions of untreated surface of steel nuts, and non-electrolytically
applied zinc flake coating technical requirements as per GB/T 5267.2 (Table 2);
--- Only allow to omit the markings of galvanizing technical requirements given in
marking example (Chapter 5).
This Part adopts re-drafting method to modify and use ISO 7053.2011 Hexagon
Washer Face Tapping Screws (English Edition).
The technical differences and causes between this Part and ISO 7053.2011 are as
follows.
--- In the normative references, use national standards to replace the international
standards (Chapter 2); add the reference of GB/T 90.2 (Table 2), and GB/T 1237
(5.1); delete the reference of ISO 724 and ISO 965-1, so that conform to China’s
fastener basic standard;
--- Increase the packaging technical requirements (Table 2); so that conform to
China’s fastener basic standard;
--- Modify the marking examples into simplified marking examples (5.2); so that
conform to the provisions of GB/T 1237.
This Part was proposed by China Machinery Industry Federation.
This Part shall be under the jurisdiction of National Technical Committee for
Standardization of Fastener (SAC/TC 85).
Drafting organizations of this Part. China Productivity Center for Machinery.
Participating drafting organizations of this Part. Machinery Industry General Parts
Product Quality Supervision and Inspection Center, and Ningbo Zhongji Machine Parts
Inspection Co., Ltd.
This Part shall be interpreted by the Secretariat of National Technical Committee for
Standardization of Fastener.
The historical edition replaced by this Part is as follows.
--- GB/T 16824.1-1997.
Hexagon Washer Head Tapping Screws
1 Scope
This Part of GB/T 16824 specifies the type and dimension, technical conditions and
markings of hexagon washer head tapping screws.
This Part is applicable to the hexagon washer head tapping screws with thread
specification ST 2.2 ~ ST 8.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 90.1 Fasteners – Acceptance Inspection (GB/T 90.1-2002, ISO 3269.2000)
GB/T 90.2 Fasteners – Marking and Packaging
GB/T 1237 Designation System for Fasteners (GB/T 1237-2000, eqv ISO
8991.1986)
GB/T 3098.5 Mechanical Properties of Fasteners – Tapping Screws (GB/T 3098.5-
2016, ISO 2702.2011, MOD)
GB/T 3098.21 Mechanical Properties of Fasteners – Stainless Steel Tapping
Screws (GB/T 3098.21-2014, ISO 3506-4.2009, MOD)
GB/T 3103.1 Tolerances for Fasteners – Bolts, Screws and Nuts (GB/T 3103.1-
2002, idt ISO 4759-1.2000)
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, Fasteners – Non-Electrolytically Applied Zinc
Flake Coatings, IDT)
GB/T 5267.4 Passivation of Corrosion – Resistant Stainless – Steel Fasteners
(GB/T 5267.4-2009, ISO 16048.2003, IDT)
......
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