JB/T 8004.4-1999 Adjusting nuts for machine tool fixture parts and components

JB/T 8004.4-1999 This standard is a revision of JB/T 8004.4-95 "Adjusting nuts 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 adjusting nuts with ordinary thread specifications of M6 to M20. This standard was first issued in 1981 as GB 2151-80, first revised to GB/T 2151-91 on April 30, 1991, and adjusted to JB/T 8004.4-95 in April 1996. JB/T 8004.4-1999 Adjusting nuts for machine tool fixture parts and components JB/T8004.4-1999 Standard download decompression password: www.bzxz.net

ICS 25. 080. 01
Standard of the Machinery Industry of the People's Republic of China
Parts and components of jigs and fixtures
The parts and units of jigs and fixtures1999-08-06 Issued
State Bureau of Machinery Industry
Implementation on 2000-01-01
Standard of the Machinery Industry of the People's Republic of Chinawww.bzxz.net
Parts and components of jigs and fixtures
Regulating nut
This standard specifies the regulating nut with thread specifications of M6~M20. 2 Referenced standards
JB/T8004.4—1999
JB/T8004.4—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/T699—1988
Technical requirements for machine tool fixture parts and components
JB/T8044—1999
3 Dimensions
The dimensions are shown in the following figure and table.
Two-effect m0
Approved by the State Machinery Industry Bureau on August 6, 1999 and implemented on January 1, 2000
Technical conditions
D (before knurling)
Material: 45 steel in accordance with the provisions of GB/T699.
Heat treatment: 35~40HRC.
3Other technical conditions shall be in accordance with the provisions of JB/T8044. 4.3
5 Marking
5.1 Marking example:
d-Adjusting nut of M16:
Nut M16
JB/T8004.4—1999
JB/T8004.4—1999
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