JB/T 8007.1-1999 This standard is a revision of JB/T 8007.1-95 "Ball 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 ball bolts with thread specifications of M4 to M36. This standard was first issued in 1981 as GB 2164-80, first revised to GB/T 2164-91 on April 30, 1991, and adjusted to JB/T 8007.1-95 in April 1996. JB/T 8007.1-1999 Ball bolts for machine tool fixture parts and components JB/T8007.1-1999 Standard download decompression password: www.bzxz.net

ICS 25. 080. 01
Mechanical Industry Standard of the People's Republic of China
The parts and units of jigs and fixtures
The parts and units of jigs and fixtures1999-08-06Promulgated
State Machinery Industry BureaubZxz.net
Implementation on 2000-01-01
Mechanical Industry Standard of the People's Republic of China
Parts and units of jigs and fixtures
Ball head bolts
The parts and units of jigs and fixturesSpherical head serew
This standard specifies ball head bolts with thread specifications of M6~M36. 2 Reference standards
JB/T8007.1-1999
Replaces JB/T 8007.1—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 will be revised, 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/T 699-1988
JB/T8044—1999
3 Dimensions
Technical requirements for machine tool fixture parts and components
The dimensions are shown in the following figure and table.
Approved by the State Machinery Industry Bureau on August 6, 199936
Implemented on January 1, 2000
Basic dimensions
Limit deviation
Basic dimensions
Limit deviation H7
JB/T 8007.1—1999
Determined according to design requirements
4 Technical conditions
4.1 Material: 45 steel in accordance with the provisions of GBT699. JB/T 8007.11999
Table (end)
4.2 Heat treatment: 35~40HRC on the length of the head H and the length of the thread 1. 4.3 Other technical conditions shall be in accordance with the provisions of JB/T8044. 5 Marking
5.1 Marking example:
d=M20, L=120mm, Type A ball head bolt
Bolt AM20×120JB/T8007.1—1999dM20, L-120mm, 1,=30mm, Type B ball head bolt: Bolt BM20×120×30JB/T8007.1—19938
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