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自攻螺钉和平垫圈组合件
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GBT 9074.18-2017
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标准编号: GB/T 9074.18-2017 (GB/T9074.18-2017)
中文名称: 自攻螺钉和平垫圈组合件
英文名称: Tapping screw and washer assemblies with plain washers
行业: 国家标准 (推荐)
中标分类: J13
国际标准分类: 21.060.10
字数估计: 6,646
发布日期: 2017-07-12
实施日期: 2018-02-01
起草单位: 中机生产力促进中心
归口单位: 全国紧固件标准化技术委员会(SAC/TC 85)
提出机构: 中国机械工业联合会
发布机构: 中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会
GB/T 9074.18-2017: 自攻螺钉和平垫圈组合件
GB/T 9074.18-2017 英文名称: Tapping screw and washer assemblies with plain washers
ICS 21.060.10
J13
中华人民共和国国家标准
代替GB/T 9074.18-2002
1 范围
GB/T 9074的本部分规定了自攻螺钉和平垫圈组合件的型式尺寸、技术条件和标记。
本部分适用于自攻螺纹规格为ST2.2~ST9.5、平支承面的、机械性能符合GB/T 3098.5的自攻
螺钉和平垫圈组合件。
2 规范性引用文件
下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件,仅注日期的版本适用于本文
件。凡是不注日期的引用文件,其最新版本(包括所有的修改单)适用于本文件。
GB/T 90.1 紧固件 验收检查(GB/T 90.1-2002,idtISO 3269:2000)
GB/T 90.2 紧固件 标志与包装
GB/T 97.5-2002 平垫圈 用于自攻螺钉和垫圈组合件(eqvISO 10669:1999)
GB/T 845 十字槽盘头自攻螺钉(GB/T 845-2017,ISO 7049:2011,MOD)
GB/T 1237 紧固件标记方法(GB/T 1237-2000,eqvISO 8991:1986)
GB/T 3098.5 紧固件机械性能 自攻螺钉(GB/T 3098.5-2016,ISO 2702:2011,MOD)
GB/T 4340.1 金属维氏硬度试验 第1部分:试验方法(GB/T 4340.1-1999,eqvISO 6507-1:1997)
GB/T 5276 紧固件 螺栓、螺钉、螺柱及螺母 尺寸代号和标注(GB/T 5276-2015,ISO 225:2010,MOD)
GB/T 5280 自攻螺钉用螺纹(GB/T 5280-2002,idtISO 1478:1999)
GB/T 5282 开槽盘头自攻螺钉(GB/T 5282-2017,ISO 1481:2011,MOD)
GB/T 5285 六角头自攻螺钉(GB/T 5285-2017,ISO 1479:2011,MOD)
3 型式尺寸
组合件中自攻螺钉的尺寸,除组装垫圈的部位应按下列要求外,其余部分应符合相应国家标准的规定:
---螺钉应有直径为ds的细杆,垫圈的直径应符合GB/T 97.5,以便能自由转动。
---从支承面到第一扣完整螺纹始端的距离,应加大到可容纳GB/T 97.5垫圈的最大厚度。
---过渡圆直径da应小于相应国家标准的规定值,其减小量为公称直径与辗压螺纹毛坯直径的差值。
组合件中垫圈应能自由转动而不脱落。
型式尺寸见图1~图4和表1。
尺寸代号和标注应符合GB/T 5276。
b 为避免在热处理的过程中对垫圈硬度的影响,组合前应对垫圈采取适当的防护措施,如镀铜。
5 标记
5.1 组合件的标记内容
组合件的标记应包括以下内容:
---对元件的描述;
---本国家标准编号;
---自攻螺钉的螺纹规格和公称长度;
---符合GB/T 5280的螺纹末端型式;
---自攻螺钉类型的代号(见表3);
---垫圈型式的代号(见表4)。
5.2 标记方法
标记方法按GB/T 1237规定。
GB/T 9074.18-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 21.060.10
J 13
Replacing GB/T 9074.18-2002
Tapping Screw and Washer
Assemblies with Plain Washers
(ISO 10510.2011, MOD)
ISSUED ON. JULY 12, 2017
IMPLEMENTED ON. FEBRUARY 1, 2018
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
3. No action is required - Full-copy of this standard will be automatically &
immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative References ... 6
3 Type and Dimension ... 7
4 Technical Conditions and Reference Standards ... 9
5 Markings ... 9
Foreword
This Part is one of the serial national standards of “Fasteners - Assemblies”, such
series include.
--- GB/T 9074.1 Bolt and Screw and Washer Assemblies with Plain Washers;
--- GB/T 9074.2 Cross Recessed Pan Head Screw and Serrated Lock Washer
External Teeth Assemblies;
--- GB/T 9074.3 Cross Recessed Pan Head Screw and Single Coil Spring Lock
Washer Assemblies;
--- GB/T 9074.4 Cross Recessed Pan Head Screw, Single Coil Spring Lock Washer
and Plain Washer Assemblies;
--- GB/T 9074.5 Cross Recessed Small Pan Head Screw and Washer Assemblies
with Plain Washers;
--- GB/T 9074.7 Cross Recessed Small Pan Head Screw and Single Coil Spring
Lock Washer Assemblies;
--- GB/T 9074.8 Cross Recessed Small Pan Head Screw, Single Coil Spring Lock
Washer and Plain Washer Assemblies;
--- GB/T 9074.9 Cross Recessed Countersunk Head Screw and Countersunk
External Toothed Lock Washer Assemblies;
--- GB/T 9074.10 Cross Recessed Raised Countersunk Head Screw and
Countersunk External Toothed Lock Washer Assemblies;
--- GB/T 9074.11 Cross Recessed Hexagon Bolt with Indention and Plain Washer
Assemblies;
--- GB/T 9074.12 Cross Recessed Hexagon Bolt with Indentation and Single Coil
Spring Lock Washer Assemblies;
--- GB/T 9074.13 Cross Recessed Hexagon Bolt with Indentation, Single Coil Lock
Washer and Plain Washer Assemblies;
--- GB/T 9074.15 Hexagon Head Bolt and Single Coil Spring Lock Washer
Assemblies;
--- GB/T 9074.16 Hexagon Head Bolt and Serrated Lock Washer External Teeth
Assemblies;
--- GB/T 9074.17 Hexagon Head Bolt, Single Coil Spring Lock Washer and Plain
Washer Assemblies;
--- GB/T 9074.18 Tapping Screw and Washer Assemblies with Plain Washers;
--- GB/T 9074.20 Cross Recessed Hexagon Head Tapping Screw with Indentation
and Washer Assemblies with Plain Washers;
--- GB/T 9074.26 Single Coil Spring Lock Washer for Assembly;
--- GB/T 9074.27 Serrated Lock Washer External Teeth for Assembly;
--- GB/T 9074.28 Countersunk External Toothed Lock Washer for Assembly.
This Part belongs to Part 18 of GB/T 9074.
This Part was drafted as per the rules specified in GB/T 1.1-2009.
This Part replaced GB/T 9074.18-2002 Tapping Screw and Washer Assemblies with
Plain Washers; compared with GB/T 9074.18-2002, this Part has the major technical
changes as follows.
--- Add slotted pan head tapping screw with chamfered end (Type-R) (see Figure
3).
This Part adopts re-drafting method to modify and sue ISO 10510.2011 Tapping Screw
The technical differences and their causes between ISO 10510.2011 and this Part are
as follows.
--- In the normative references, use national standards to replace the international
standards (see Clause 2); add the reference of GB/T 5276 (see Clause 3), GB/T
90.1 (see Table 2), GB/T 90.2 (see Table 2), GB/T 1237 (see 5.2); so that conform
to China’s fastener basic standard;
--- Add the packaging technical requirements (see Table 2); so that conform to
China’s fastener basic standard.
This Part was proposed by China Machinery Industry Federation.
Standardization of Fastener (SAC/TC 85).
Drafting organizations of this Part. China Productivity Center for Machinery.
Participating drafting organizations of this Part. Zhejiang Jingyi Standard Components
Co, Ltd.
Tapping Screw and Washer
Assemblies with Plain Washers
1 Scope
This Part of GB/T 9074 specifies type and dimension, technical conditions and marking
of tapping screw and washer assemblies with plain washers.
for Thread Specification ST 2.2 ~ ST 9.5, flat supporting surface, and the mechanical
properties conforming to GB/T 3098.5.
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, idt ISO
3269.2000)
GB/T 97.5-2002 Plain Washers for Tapping Screw and Washer Assemblies (eqv
ISO 10669.1999)
GB/T 845 Cross-Recessed Pan Head Tapping Screws (GB/T 845-2017, ISO
7049.2011, MOD)
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 4340.1 Metallic Materials – Vickers Hardness Test – Part 1. Test Method
GB/T 5276 Fasteners - Bolts, Screws, Studs and Nuts - Symbols and Descriptions
of Dimensions (GB/T 5276-2015, ISO 225.2010, MOD)
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