JB/T 8007.3-1999 Hook bolts for machine tool fixture parts and components

JB/T 8007.3-1999 This standard is a revision of JB/T 8007.3-95 "Hook bolts for machine tool fixture parts and components". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard specifies hook bolts with thread specifications of M6 to M24. This standard was first issued in 1981 as GB 2166-80, first revised to GB/T 2166-91 on April 30, 1991, and adjusted to JB/T 8007.3-95 in April 1996. JB/T 8007.3-1999 Hook bolts for machine tool fixture parts and components JB/T8007.3-1999 Standard download decompression password: www.bzxz.net

ICS 25. 080. 01
Machinery Industry Standard of the People's Republic of ChinabZxz.net
The parts and units of jigs and fixtures
The parts and units of jigs and fixtures1999-08-06Promulgated
State Bureau of Machinery Industry
Implementation on 2000-01-01
1 Scope
Machinery Industry Standard of the People's Republic of China
Parts and units of jigs and fixturesHook bolt
This standard specifies hook bolts with thread specifications of M6M24. 2 Referenced standards
JB/T 8007.3-1999
Replaces JB/T 8007.3-1995
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. Technical conditions for high-quality carbon structural steel
GB/T699-1988
JB/T8044-1999
Technical requirements for machine tool fixture parts and components
3 Dimensions
The dimensions are shown in the following figure and table.
Approved by the State Machinery Industry Bureau on August 6, 1999, Type A
Implemented on January 1, 2000
Basic dimensions
Limit deviation 9
Basic dimensions
Limit deviation h11
4 Technical conditions
4.1 Material: 45 steel as per GB/T699. 4.2 Heat treatment: 35~40HRC
4.3 Other technical conditions as per JB/T8044. 42
JB/T8007.3-1999
5 Marking
5.1 Marking example:
JB/T8007.3-1999
d-M6, A=12mm, L=30mm, A-type hook bolt: bolt AM6×12×30JB/T8007.3-1999d=M6, A,=15mm, L~30mm, B-type hook bolt: bolt
BM6×15×30JB/T 8007.3-199943
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