This standard specifies the product classification, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of manual socket wrench sockets. This standard applies to the sockets of manual socket wrenches for installing and removing hexagonal bolts and nuts. GB/T 3390.1-2004 Manual socket wrench sockets GB/T3390.1-2004 Standard download decompression password: www.bzxz.net

ICS25.140.30
National Standard of the People's Republic of China
GB/T 3390.12004
Replaces GB/T3390.1—1989
Hand operated socket wrenches-Socket(ISO 2725-1:1996, Assembly tools for screws and nuts—Square drivesockets--Part 1: Hand-operated Sockets-Dimensions, MOD) 2004-03-15 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2004-09-01 Implementation
GB/T3390.1-2004
This standard is revised on the basis of the original national standard GB/T3390.1-1989 "Manual socket wrench socket", and is one of the manual socket wrench product series standards. Other standards issued at the same time are as follows: GB/T3390.2-2004 "Manual socket wrench transmission square sample and square hole"; -GB/T3390.3-2004 "Manual socket wrench transmission accessories"; GB/T3390.4-2004 "Manual socket wrench connection accessories"; -GB/T3390.5-2004 "Manual socket wrench inspection rules, packaging and marking". This standard is modified to adopt ISO2725-1:1996 "Screw and nut assembly tools - square drive sockets - Part 1: Hand-operated sockets - Dimensions" (English version).
Taking into account my country's national conditions, this standard has made some modifications when adopting ISO2725-1:1996. The relevant technical differences have been compiled into the text and marked with a vertical single line in the margins of the clauses they involve. A list of these technical differences and their reasons is given in Appendix A for reference. Appendix B shows the comparison of the chapter and article numbers of the technical differences with ISO2725-1:1996 for reference.
The main differences between this standard and ISO2725-1:1996 are as follows: some expressions applicable to international standards are changed to expressions applicable to Chinese standards; corresponding specifications are added to the 10mm, 12.5mm, 20mm and 25mm series of sockets; the tolerance of the opposite side dimensions of the working part of the sleeve adopts the tolerance specified in GB/T4390, and this national standard adopts the international standard ISO 691:1983;
-According to the technical conditions of ISO1711-1:1996 "Screw and nut assembly tools-Technical conditions-Part 1: Hand wrenches and sockets" in the normative reference documents of ISO2725-1:1996, the torque requirements and test methods of the sockets are added. Compared with the original national standard GB/T3390.1-1989, the main changes of this standard are as follows:-Cancel the strength level b, and retain the strength levels a and c (see 3.3, Table 7); Some contents have been adjusted.
Appendix A and Appendix B of this standard are informative appendices. This standard is proposed by China Light Industry Federation. This standard is under the jurisdiction of National Tool Hardware Standardization Center. This standard is drafted by Shanghai Tool Industry Research Institute, and Shanghai Xingguang Li Ke Tools Co., Ltd., Shanghai Hongjiang Machinery Factory, Jiaxing Xingqiu Tools Co., Ltd. participated in the drafting. The main drafters of this standard are: Lin Meide, Wang Penggen, Zhang Yufang, Zhu Shiliang, Wu Zuxun. The previous versions of the standards replaced by this standard are: -GB/T 3390.1--1982.GB/T 3390.1—1989. 1
Manual socket wrench socket
GB/F3390.1---2004
This standard specifies the product classification, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of manual socket wrench sockets.
This standard applies to the sockets of manual spanners for installing and removing hexagonal bolts and nuts. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all dated referenced documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties who reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated referenced documents, the latest versions are applicable to this standard. GB/T230 Metal Rockwell hardness test method (GB/T230-1991, neqISO6508:1986) GB/T3390.2 Manual socket wrench transmission square sample and square hole (GB/T3390.2--2004, ISO1174-1:1996, MOD) GB/T3390.5 Manual socket wrench inspection rules, packaging and marking Common tolerances for metric wrench openings and wrench holes (GB/T4390~-1995, eqvISO691:1983) GB/T4390
GB/T 4955www.bzxz.net
GB/T 6462
1463:1982)
3 Product classification
3.1 Type
Metal coating coating thickness measurement Anodic dissolution coulometric method (GB/T4955--1997, idtISO2177:1985) Metal and oxide coating cross-sectional thickness microscope measurement method (GB/T6462-1986, eqvISO The shape of the sleeve is shown in Figures 1 to 3. According to the length of the sleeve, it is divided into ordinary type (type A) and extended type (type B). And according to the geometric shape of its working part, it is divided into hexagonal hole and dodecagonal hole, among which the hexagonal hole is represented by L, and the dodecagonal hole is not represented. Figure
Sleeve outer diameter d,d2
The sleeve is divided into five series according to the opposite side size of the transmission square hole: 6.3mm, 10mm, 12.5mm, 20mm and 25mm. 3.3 Grade
The sleeve is divided into two grades: a and c according to its strength. 3.4 Basic size
The basic size of the sleeve is specified in Table 1 to Table 5. Table 16.3 Basic dimensions of series sleeves
Type A (sound-through type)
Unit: mm
Type B (extended type)
Table 210 Basic dimensions of series sleeves
12.5 Basic dimensions of series sleeves
GB/T3390.1-—2004
Unit: mm
Type A (ordinary type)
Type A (ordinary type)
Type B (extended type)
Unit: mm
Type B (extended type)
GB/T 3390.1—2004
Table 420 Basic dimensions of series sleeves
25 Basic dimensions of series sleeves
Type A (normal type)
Unit is mm
Type B (long type)
Unit is mm
(normal type)
3.5 Tolerance of opposite side dimensions
The tolerance of opposite side dimensions of the working part of the sleeve shall comply with the provisions of GB/T4390. 3.6 Marking example
GB/T 3390.1—2004
The marking of the product consists of the product name, opposite side dimensions, series, type code, hole shape code, strength grade code and standard number. Example 1: 12.5 series A type a grade strength hexagonal socket with opposite side dimension s of 19mm should be marked as: socket 19×12.5ALaGB/T3390.1
Example 2: 10 series B type c grade strength twelve-pointed socket with opposite side dimension s of 17mm should be marked as: socket 17×10BcGB/T3390.1
4 Technical requirements
4.1 Surface quality
The sleeve should have uniform wall thickness, and there should be no defects such as cracks, burrs, spots and scars on the inner and outer surfaces that affect the use. The R value of the surface roughness of the hexagonal hole and the twelve-pointed hole should not be greater than 25μm, and each corner should be clear. 4.2 Transmission square hole
The transmission square hole of the sleeve should comply with the provisions of GB/T3390.2. 4.3 Hardness
The hardness of the sleeve shall comply with the provisions of Table 6.
6 Hardness
Side size s/mm
4.4 Torque
The sleeve should be able to withstand the test torque specified in Table 7. 4.5 Surface treatment
Hardness (HRC)
The sleeve surface should be electroplated or otherwise treated. The thickness of the electroplating layer should not be less than 8um, and the surface should be uniform in color and should not have defects such as pores, plating leakage, burning and peeling. 5
GB/T3390.1—2004
Side size
6.3 series
10 series
Table 7 Test torque
Test torque M/N·m
12.5 series
The test torque value has been limited, and the square sample strength is lower than the strength of the sleeve made of the same material b
20 series
25 series
2236°
The value used in the table is larger than the actual calculated value, because the strength of the 20 mm square sample sleeve is lower than that of the 12.5 mm square sample sleeve. It is an unreasonable test method
5.1 Surface quality inspection
The surface quality of the sleeve is visually inspected, and the surface roughness is inspected by comparison with the standard sample. 2 Size inspection
The size of the sleeve is inspected by special gauges and general measuring tools. 6
5.3 Hardness test
The hardness test of the sleeve shall be carried out on the outer surface of the working part of the sleeve in accordance with the provisions of GB/T230. 5.4 Torque test
GB/T3390.1—2004
5.4.1 The hexagonal test bar used for the torque test is shown in Figure 4, and its dimensions are in accordance with the provisions of Table 8. The hardness of the hexagonal test bar shall not be less than 55HRC.
Figure 4 Hexagonal test bar
Table 8 Dimensions of hexagonal test bar
Basic dimensions
Basic dimensions
Basic dimensions
Basic dimensions
Basic dimensions
Basic dimensions
Unit: mm
The opposite side dimension of the square test bar of the drive sleeve shall be equal to the maximum dimension of the corresponding square hole of the sleeve, with a tolerance of h8. The hardness of the square test bar shall not be less than 55HRC.
5.4.3 Torque test As shown in Figure 5, first put the sleeve into the hexagonal test bar, and then insert the square test bar into the square hole of the sleeve. The 7
GB/T3390.1--2004
axis of the two test bars should be coaxial with the axis of the sleeve. During the test, the torque specified in Table 2 is applied to the square test bar steadily and slowly. When the torque reaches the rated value, it is maintained for 30 seconds. After unloading, the opposite side dimensions of the working part of the sleeve and the opposite side dimensions of the square hole shall not exceed the tolerance range. The torque test machine using the test bar rotation has a torque accuracy of ±2.5%. Square test bar
Hexagonal test bar
5 Torque test
5 Electroplating layer thickness test
The thickness of the electroplating layer of the electroplated sleeve shall be measured in accordance with the provisions of GB/T4955. The electroplating layer that cannot be measured by this method shall be measured in accordance with the provisions of GB/T6462.
6 Inspection rules
The inspection rules for products shall be in accordance with the provisions of GB/T3390.5. Packaging, marking, transportation and storage
The packaging, marking, transportation and storage of products shall be in accordance with the provisions of GB/T3390.5. 8
Appendix A
(Informative Appendix)
Technical differences between this standard and IS0 2725-1:1996 and their causes Table A.1 gives a list of technical differences between this standard and ISO2725-1:1996 and their causes. Table A.1 Technical differences between this standard and ISO2725-1:1996 and their causes Article number of this standard
3.4 ​​(Tables 2 to 5)
4.4 (Table 7)
5.4.1 (Table 8)
Technical differences
Chinese standards that adopt international standards are quoted. Added references to GB/T230, GB/T3390.5, GB/T 4955, GB/T 6462.
Added the following specifications in Tables 2 to 5.
Table 2: s-6mm; Table 3: s-8,9mm,
Table 4: 5=19mmTable 5: s=27,30,32,34,36,41，65,70,75,80 mm.
Added the torque of the test torque C series and the specifications added to Tables 2 to 5.
Added the size of the hexagonal test bar >65 mm. Appendix B
(Informative Appendix)
To suit my country's national conditions.
GB/T3390.1--2004
To suit the production and use specifications of existing products in my country. To suit the current status of our country's products and the production and use specifications. To suit the production and use specifications of our country's existing products. Table B.1 of the technical differences between this standard and ISO2725-1:1996 gives a list of the technical differences between this standard and ISO2725-1:1996. Table B.1 Comparison of technical differences between this standard and ISO 2725-1:1996 Article number of this standard
Corresponding international standard article number
Table 2 to Table 5
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