JB/T 8004.2-1999 Spherical shoulder nuts for machine tool fixture parts and components

JB/T 8004.2-1999 JB/T 8004.2-1999 Machine tool fixture parts and components Spherical shoulder nuts JB/T8004.2-1999 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 Bureau
Implementation on 2000-01-01
Mechanical Industry Standard of the People's Republic of China
Parts and units of jigs and fixturesSpherical nut with shoulder
The parts and units of jigs and fixturesSpherical nut with shoulderbzxZ.net
This standard specifies the spherical shoulder nuts with thread specifications of M6 to M48. 2
Cited standards
JB/T8004.2—1999
Equivalent JB/T8004.21995
The following standards contain provisions that 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. Parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T699-1988 Technical conditions for high-quality carbon structural steel Technical requirements for machine tool fixtures and components
JB/T8044—1999
3 Dimensions
The dimensions are shown in the following figure and table.
Approved by the State Machinery Industry Bureau on August 6, 1999, Type B
Implemented on January 1, 2000
4 Technical conditions
Basic dimensions
4.1 Material: 45 steel in accordance with the provisions of GB/T699. 4.2 Heat treatment: 35~40HRC.
4.3 Other technical conditions in accordance with the provisions of JB/T8044. 5 Marking
5.1 Marking example:
d-M16 Type A spherical shoulder screw:
Nut AM16JB/T8004.2-—1999
JB/T8004.2—1999
Limit deviation
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