This standard specifies the self-tapping screw and flat washer assembly with self-tapping thread specifications of ST2.2 to ST9.5, flat bearing, and mechanical properties in accordance with GB/T 3098.5. The washer in the assembly should be able to rotate freely without falling off GB/T 9074.18-2002 Self-tapping screw and flat washer assembly GB/T9074.18-2002 Standard download decompression password: www.bzxz.net

r21.0G0.10
National Standard of the People's Republic of China
GB/T9074.18-2002
tyIso10510.1999
Tapping screw and washer assemblies with plain washers2002-12-05Promulgated
People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine
2003-06-01Implementation
G1/T 9074.18-:2002
This standard is equivalent to the international standard 15010510:19994 Self-tapping screw and washer assemblies? This standard meets the national standard "Fixed parts" product series standards. Net series include: E) GH/T 9074.1—2062
Bolt or screw and flat washer assembly
h GB/T Sc71. 2--1988
) CB/1 9074.31983
d) GBT 9074.4-1088
e GB/T 9074. 5 782
0 GT9:1,51986
gi GB/19374.71988
h? t,5/T 5e74. $-1988
i) G8/T 9074. 9---1988
j: GI5/T 9074. 10
k) GB:T $074.11
GB/T 9074. 12—1988
Cross punch head frequency red know external gear frequency tight washer assembly: [character pan head screw single spring potential enclosure assembly
Ten sub grid pan head training, spring reading pad diagram and one pad diagram assembly; 1 Ning small pan head screw and vertical washer assembly:
Ten learning small pan head explosion package and large washer break assembly character block small belt let dry Zhao and spring energy single circle correction piece ten sub punch small head ball and spring capital car diagram and flat washer assembly: Ning push countersunk head explosion nail and shape lock black washer correction piece; cross trace half countersunk head Ding hit shape fastening washer diagram square now piece; upper character space hexagonal rule press and flat diagram correction piece
Ten sub sugar hole hexagonal head bolt and spring yellow washer diagram extension piece: r) GI5:T 4074. 13—19HH
r> GB/T SCF4. -5
0) GR/T 9074.16
p) GB/T 9u74. 17
GT/T 9074.18—2002
r)GBT9074.231938
R) GE/T 10*4.2—_988
Yu take the lead hole hexagonal head burning light spring business trend and flat washer combination six head account wide washer assembly:
Hexagonal head explosion and outer pot long locking combination hexagonal head bolt, spring yellow washer and flat washer assembly 1 white modified account nail and trend assembly 1
F-shaped handle hole hexagonal head self-tapping explosion nail and flat washer rental assembly: ten shot concave hole hexagonal head self-modification and large concentrated country women combination. 1S) 110 Technical references require the standard for marking of parts. This standard shall be used in accordance with 5.2: IS (11051 The final reference fastener acceptance inspection standard shall be determined in accordance with the current technical standard (Chapter 15) 10510 Technical requirements for packaging transfer. The standard shall be specified (Chapter 1) This is a revised version of GB/T074.18-1988, GB/9074.11S88, GR/T9074.221938 and GR/T9074.231988. The main modifications are as follows: 1 old standard is combined into one standard:
b! The specification section of the effective screw diameter is integrated and maintained (Table 1 ),) two potential series are available for selection (Table 1: 3: The hardness change range of the mountain standard is as follows. And the measures for the change of hardness after heat treatment should be reported (Chapter 1), this standard is proposed by the China Machinery Industry Federation, and this standard is under the jurisdiction of the National Fastener Standardization Technical Committee. This standard is proposed by the China Machinery Science and Technology Research Institute, and this standard is interpreted by the National Fastener Standardization Technical Committee. GA/T 9074.18—2002
ISO (International Organization for the Promotion of Standards) is a worldwide association of national standards bodies (ISOs). The work of formulating international standards is usually carried out through a technical committee. Each member body may participate in the committee if it is interested in the project carried out by a technical committee. International organizations, governmental and non-governmental, also participate in this work. TS0 has close contact with the International Electrotechnical Commission (IEC) for automotive electrical standardization. The drafting of international standards shall be carried out in accordance with the rules given in Part 3 of 12(c)/1EC Directives. The draft national standards adopted by the technical committees are circulated to all member bodies. The publication of international standards requires at least ?5% of the member bodies to vote in favor or International Standard S0F10 is developed by S/TC2 Fastener Technical Committee. 1 Scope
National Standard of the People's Republic of China
Self-tapping screws and plain washers
Tupping yrcw und washcr asscmhliey with plain washersCR/T9074182002
eq1s4) 10510:1999
Sub G1T9074.18
G:P/T 9074.19
GRT9074.23
G/T 9074. 231938
This standard stipulates that the self-heating specification is S12.2--≤19.5, and the mechanical performance meets the requirements of G3093.5.
The cushion in this set of parts should be able to stop rotating without falling off. 2 Reference standards
The provisions contained in the following standards are used in this standard. The provisions of this standard are valid at the time of publication of this standard. All standards will be used by you. Use the following standards to discuss the performance of the new points of this standard. GBT90.12c02 purple parts: acceptance inspection (id: 15()3269: 2000)tik/: 00. 2- -2622
GR/T 6.52JI
G3/T 815-19K3
(3/T123?
fastener cup mark and color decoration
used for drawing parts
pan head or welding nails 150091983)
G52T 3058.52000
(+h,T 434, -
parts machine performance self-banid1S2702: 1932 Jinyu Vickers hardness test Part 1: Test method IS657-1G3/T 5292—:33:
Open head pan screw (S01.81:1985) H/152851935 six head modified end nail eI5)1479, 1983)3 size
3.1 The size of the self-tapping screw in the assembly, except for the assembly pad surrounding control part, the rest of the measurement shall comply with the relevant national standards:
-The thin rod with the self-diameter d is based on the self-diameter price of the drawing, so that it can rotate from the × bearing surface to the first complete source. The ratio of this road belt should be as large as possible to accommodate the maximum thickness of the G3 work 97.5 potential. The true diameter should be less than the corresponding value of the standard, and the minimum quantity is the straight diameter! The relevant information of the screw effect and diameter.
32 dimensions are shown in Figures 1 to 3 and Table 1.
Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on December 5, 2002 and implemented on June 1, 2003
Screw effect specification
GE,T 9074.182002
Figure 1 Dimensional end" angle head self-government source Ting
Figure? Flat front pan head self-government blasting nail
Figure 3 Through the circle straight line and rod
Standard policy list
1) Scale and or measurement
Extracted from 4/only information.
Flat to scale:
Big system measurement
4 Technical conditions and reference standards
GB/T9074.18—2002
In the assembly, the performance of the self-changing machine should comply with (J3/T3098.5 will be specified. 4.1
In the assembly, the code of the hardness diagram becomes: 9:1HV~-32VHV4.2 Dimensional hardness test according to GB/14313.1 stipulates that for trial use,
HV is used for nominal thickness 1.2mm
1V3 is used for nominal thickness h>1.2mm. bzxz.net
4.3 To prevent the influence of heat treatment on the gasket, appropriate protective measures shall be taken, such as the following. The inspection of tapping screws and gaskets shall be in accordance with the provisions of H/90.1. 5 Marking
5.1 The marking of tapping screws and gaskets shall include the following contents: description of components,
National Standard Number:
Characteristics of tapping screws:
Code of tapping screw type (Table 2);
Code of tapping screw type (see Table 3).
2 Code of tapping screws
Standard Number General Name
GT EE5
GB/T845
G13/52E2
Standard Code and Name
GE/T 97. 5
Big boat head frequency
Character precision monitoring head door attack width
Open loss pan head door attack screw system
Table 3 potential circle code
Ping some months in self-made
5.2 Standard certificate according to (H/1237 regulations.
5.3 Marking example
Hexagonal head white receiving nail flat sitting diagram assembly includes: one GH/T5285S1) know one GB/97.5 standard series whole with (code N) mark, standard push disease death
Tai series
ST4-2×16 Cone braided (C) square head self-tapping burning (your white attack blasting nail and grease assembly 6/T50?4.18514.2×15CS1[character description pan head self-tapping screw red flat net assembly includes: - GB/T845ST4.2×16. Chain (C), Z plastic cross grid head attack mark (code S2> and T7. International standard system purchase gasket (code) mark: self-tapping nail and gasket assembly GB/TSC71.18ST4.2X:5:2S2N
5 marking and packaging
assembly marking he installed CT/T90.3 provisions,
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