This standard specifies hexagonal head bolts with thread specifications of M5 to M64, full thread, performance grades of 3.6, 4.6, and 4.8, and product grade C. If other technical requirements are required, they should be selected from the current standards (such as GB/T 196, GB/T 3106, GB/T 3098.1 and GB/T 3103.1). GB/T 5781-2000 Hexagonal head bolts, full thread, grade C GB/T5781-2000 Standard download decompression password: www.bzxz.net

ICS_21.060.10
National Standard of the People's Republic of China
GB/T5781—2000
eqvIso4018:1999
Hexagon head bolts
Full thread
Hexagon head bolts-Full thread--Product grade C2000-09~26Released
2001-02-01Implementation
Released by National Quality and Technical Supervision Bureau
GB:T 5781-2000
This standard adopts the international standard IS04018.1%9 Hexagon head bolts, the product is grade C. This standard is the national standard "big free Sakato firmware \ product series standard -- product classification This series box live, hexagonal head # format, GB/T2?, GH/T28B/, 1, GB/T25.2. GR/T31., GB/T1.2G3/T 31,3. GB/T32.1. GB/T42.2, GE/T32.3. GB/\5780. GR/T $7* GB/1 $782, GB/T 5733G/T S784, GB/T 5785 GH/T 5785hT * angle course &. GB/T41GB/T56, GB/TB32. GH/T804. CL/T80h. GB/T8U8. GR/I86S.1, GR/T889.2, GI3/T 923. GB/T e173, CJ/T 617,GB/-6172.1.GR/T6173..GB/T G173GB/T $174,GE/T 6_75.CB/T 6176,GB/T 6178,GB/T S179.GB/T61HC,GD/T 6181,GB/T 6132GB/J 5184,GB/T 6-55.-.(F/T r18.2,GB/T G186,GB/T 9457.G3/T 9458,GM/T S45U GT-S1
) Six flange re-ticket G857B3.157! and GB/T.6574;d bird law class #CB/T6.71.1.G8/piece 6172.2.GR/T618.1GB/983.2.GB/T6187.1GB/- 6187.2
+: Inspection structure for inspection and filming: GH/11278.K/1220.GB/T1220GB/T3332.GR/T1693DGBT 18230.1.G13/118230.2,CB/T1&23H.3,GH/T13280.4,G3/T1R240.5,GB/T18230.6 and GE5J1323U.7
f) Six rabbit head screws, wood nails, or screw double assemblies GJ/838.(s/11C2.CB/T5235,GH/6563GI/T 92IG,GB/T 13AiG.4,GB/T165241.GI/T 1h524.2,B/T74.11.G/T $074.:2.GB/T 9074.13,GK/T9074.\1,GB/TU/4.15,GR/T 9074.i,GB/T H71.17.GB/T SC74.23.GR/1 9074.CB/T J04.22 GH/T 9374.3IS04E specifies H real type diagram.
S) 1 is the end of the car, the car is required, this standard is based on the provisions! 3): 154018 stipulates the standard, the standard is based on the principle of 6 room/T137, etc., the standard will adopt 1504:1\ production of the date of the request. Its internal wear has been included in the previous high of the wood cup standard, this standard is the GD/July 116 version, the main interpretation is as follows:) the optional degree of calibration pattern distribution, table 1 light fan sudden effect specifications (cabinet standard table 1 positive table): table non-preferred tide effect specifications equivalent to 3-1 long flow table 3:
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Since the implementation of the standard, G/Ta731-1986, this standard is proposed by China's machinery industry, this standard is responsible for the National Fastening Materials Research Institute, Beijing Machinery Industry Association, Shenyang A Standards Industry Factory and Xinxing City High Humidity!
This standard is responsible for the technical requirements of the tightening parts market, GB/T5781-2000
IS Foreword
ISC (International Standardization Organization) is a joint group of international national standard organizations (TSO member organizations). The work of developing international standards should be carried out through the participation of various technical committees. If the technical committee is interested in the project, the committee may participate in the work. The relevant government and non-governmental organizations may participate in this work. The International Electrotechnical Commission (ISO) has close contact with the International Electrotechnical Commission for Standardization. The International Standard is drawn up in accordance with the rules given in Part 3 of ISO IE. The original draft adopted by the technical committee is circulated to all members for voting. The International Technical Forum has published the draft in full or approved by the committee.
International Standard 150018 1S0/12 Technical Requirements for Firmware Technical Requirements. The second edition has been revised and supplemented by the first edition (IS04013; 1988). It is effective. Introduction
This international standard is part of the IS1 product series of standards for external hexagonal fasteners. The core series includes: a) hexagonal studs (1502014--4016 and 1508765); hexagonal nuts (1504071, 1504018, and 150576); hexagonal nuts (1504033~4056 and 1508673~8675); b) hexagonal flange screws (1504761, 15010663); and c) hexagonal flange screws (150475, 1507411~744 and 150417). 1 Scope
National Standard of the People's Republic of China
Hexagon head bolts
Full thread grade C
Hexagon heud bulls-Full thread-Prudurt urude CGB/T 5781 2090
eqv15o4018.1999
4#A/T571ER
The technical standard stipulates that the lead period is M5--M6, the full thread efficiency, leaf energy and other indicators are 3.6, small. 6 and 4.A, product grade C is generally eight-headed,
: This product has a total of G78G
If other technical requirements are required, the standard (such as GB/196 GB31066B/308.1 and GB312.1) must be selected.
2 Referenced standards
The following standards contain provisions. Through reference in this standard, they constitute the provisions of this standard. When this standard is published, the versions shown are valid. All existing standards will be revised, so all parties to this standard should note the availability of the following standards that are not the latest version. GB901985 Case acceptance inspection, marking and packaging (er1503259.1984) C1! 1 Ordinary screw size (diameter 1~0mm2/door 1_981 Ordinary course effect tolerance and matching (diameter 1~355-m) G137--2500 system periphery Parts marking cg1508091:19) G150s8.2000 fasteners, torque parts, flame nails, flame columns id1s0895-1:195sG/1.-1\82:188 years of quality certification and public welfare smoking period (cS04753-11478) (11/3116--13821988 confirmation) class bolts, nails and bursting columns nominal length and ordinary bolt bursting length (eqIs06 :1976)
GH/T5267
Screw fastener electroplating meeting
GB/Tb2761385
Firmware performance, explosion class main and female size and standard 8)5:13G/800 head inspection frequency (S01159
G1/TG93%1:07 fastening heat tracing performance, screws and parts and general technical specifications 0t1392168G)1s0 10685.206c
3 size
non-electrolytic zinc powder coating
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CB/T5781—2000
Table 1(end)
Strong-effect extension
2a- 73
Analysis: one ma
GB/I ​​57812000
Non-preferred tide system specifications
Effective specifications d
Pitch,
\: Delivery belt question about product length adjustment.
4 Technical cases and referenced standards
H Investment technical parts
Machine traction performance
And some sea
Inspection standards and packages
Product management
GB/T57812000
Table 2 (end)
Table technical parts and referenced standards
GB:T 16933
GR/2 1:6,0S/T 197
d7mm:3.f.4. F.4.7
29mo nuclear times
d S mn:G 3ca.1
d:39mz. nuclear
Unequal certificates
Technical requirements according to 6320?
Other points on the product surface shall be marked by the association
5.
5.1 The marking method shall be in accordance with the provisions of GB/T1237
5.2 Marking example
GB/T 5781-2000
Marking of angle head bolts with screw specification d=M12, nominal length [=mm, performance grade 4, body grade, without surface treatment, full thread effect, product sensitivity C velvet:
M12×80
Bolt GB/T5781
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