Search result: GB/T 1229-2006 (GB/T 1229-1991 Older version)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 1229-2006 | English | 70 |
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High strength large hexagon nuts for steel structures
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GB/T 1229-2006
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| GB/T 1229-1991 | English | 199 |
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High strength large hexagon nuts for steel structures
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GB/T 1229-1991
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| Standard ID | GB/T 1229-2006 (GB/T1229-2006) | | Description (Translated English) | High strength large hexagon nuts for steel structures | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J13 | | Classification of International Standard | 21.060.20 | | Word Count Estimation | 5,583 | | Date of Issue | 2006-03-27 | | Date of Implementation | 2006-11-01 | | Older Standard (superseded by this standard) | GB/T 1229-1991 | | Quoted Standard | GB/T 1228; GB/T 1231; GB/T 1237; GB/T 5276 | | Adopted Standard | ISO 4775-1984, NEQ | | Drafting Organization | Academy of Railway Sciences | | Administrative Organization | National Standardization Technical Committee fasteners | | Regulation (derived from) | China National Standard Approval Announcement 2006 No.5 (Total No.92) | | 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 | | Summary | This standard provides specifications for the M12 ~ M30 thread high strength large hexagon nut type size, technical conditions and markers. This standard applies to GB/T 1228 " steel with high strength large hexagon head bolts " steel structure supporting the use of friction-type high strength bolts connecting deputy. |
ICS 21.060.20
J 13
National Standard of the People’s Republic of China
Replacing GB/T 1229-1991
High Strength Large Hexagon Nuts for
Steel Structures
(ISO 4775. 1984, Hexagon nuts for high strength structural bolting with large
width across flats - Product grade B-Property classes 8 and 10, NEQ)
ISSUED ON. 2006-03-27
IMPLEMENTED ON. 2006-11-01
Jointly issued by. General Administration of Quality Supervision, Inspection and
Quarantine; Standardization Administration of the Peopl’s Republic of China
GB
1Foreword
This national standard is corresponding to standard "High Strength Large Hexagonal Nuts
for Bolting Structure Production Grade B - Property Classes 8 and 10" (ISO 4775.1984). It is
non-equivalent to the consistency of ISO 4775.
This standard replaces standard "High Strength Large Hexagon Nuts for Steel
Structures" (GB/ T 1229-1991).
Compared with GB/T 1229-1991, the changes in this standard are listed as follows.
- The related styles of dual chamfered nuts of GB/T 1229-1991 have been deleted
(Figured "optional style" of Chapter 3 and Data Column M in appendix of GB/T 1229-1991);
the code m” of original size has been changed into m′ (Chapter 3 of GB/T 1229- 1991).
This standard is one of Contact Sets of Friction-type High Strength Bolt Hexagon Nut and
Plain Washer for Steel Structures of Chinese Standard Product Series. The standards of this
series also include.
- GB/T 1228-2006 High Strength Bolts with Large Hexagon Head for Steel Structures
- GB/T 1230-2006 High Strength Plain Washers for Steel Structures;
- GB/T 1231-2006 Specifications of High Strength Bolts with Large Hexagon Head,
Large hexagon Nuts, Plain Washers for Steel Structures;
- GB/T 3632-1995Type and Dimension for Sets of Torshear Type High Strength Bolt
Hexagon Nut and Plain Washer for Steel Structures
- GB/T 3633-1995 Technical Requirement for Sets of Torshear Type High Strength Bolt
Hexagon Nut and Plain Washer for Steel Structures.
This national standard was proposed by China Machinery Industry Federation.
This national standard shall be under the jurisdiction of National Technical Committee
85 on Fasteners Standardization Administration of China
This national standard was drafted by China Academy of Railway Sciences; and the
participating organizations of drafting are China Academy of Machinery Science &
Technology, Shanghai High Strength Bolts Plant, Central Research Institute of Building and
Construction, MCC Group, Daye Special Steel Co., Ltd.
This national standard was prepared by Cheng Jiqing and Shen Jiahua.
The previous versions which were replaced by this standard are as follows.
- GB 1229-1976, GB 1229-1984, GB/T 1229-1991.
2High strength large hexagon nuts for
steel structures
1 Scope
This national standard specifies the style and size, technical condition and tagging of
the high strength large hexagon nuts whose screw dimension is M12~M30.
This national standard is applicable to the contact sets of friction-type high strength
bolt hexagon nut and plain washer for steel structures which are used together
with GB/T 1228-2006 High Strength Bolts with Large Hexagon Head for Steel
Structures.
2 Normative References
The following normative documents contain provision which, through reference in
this text, constitute the provisions of this national standard. For dated reference,
subsequent amendments (excluding corrigendum) or revisions of these
publications do not apply. However, it is encouraged for the parties who reach to
an agreement to use the latest edition of these documents by referring to this
standard. For undated references, the latest edition of the normative document referred
to applies.
GB/T 1228 High Strength Bolts with Large Hexagon Head for Steel Structures [GB/T
1228-2006, ISO 7412. 1984, Hexagon bolts for high strength structural
bolting with large width across flats(short thread length) - Product grade
C-Property classes 8.8 and 10.9, NEQ]
GB/T 1231 Specifications of High Strength Bolts with Large Hexagon Head, Large
Hexagon Nuts, Plain Washers for Steel Structures
GB/T 1237 Designation System for Fasteners(GB/T 1237-2000, eqv ISO 8991.1986)
GB/T 5276 Fasteners; Bolts, Screws, Studs and Nuts; Symbols and Designations of
Dimensions (GB/T 5276-1985, eqv ISO 225. 1983)
3 Dimension
See Figure 1 and Table 1 for the dimension. The dimension code and tagging shall be in
according with the requirements of GB/T 5276.
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