JB/T 8004.5-1999 Knurled nuts with holes for machine tool fixture parts and components

This standard is a revision of JB/T 8004.5-95 "Knurled nuts with holes 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 knurled nuts with holes with ordinary thread specifications of M3 to M20. This standard was first issued in 1981 as GB 2152-80, first revised to GB/T 2152-91 on April 30, 1991, and adjusted to JB/T 8004.5-95 in April 1996. JB/T 8004.5-1999 Knurled nuts with holes for machine tool fixture parts and components JB/T8004.5-1999 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 fixtures
The parts and units of jigs and fixturesKnurled nut with hole
This standard specifies the knurled nut with hole with thread specifications of M3~M20. 2. Reference standards
JB/T8004.5-1999
Replaces JB/T8004.5—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. GB/T699—1988wwW.bzxz.Net
Technical conditions for high-quality carbon structural steel
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, 1999. Mesh m0.%
Implemented on January 1, 2000
D (before knurling)
Technical conditions
4.1Material: 45 steel in accordance with GB/T699. Heat treatment: Type A 35~40HRC.
JB/T8004.5-1999
4.3Other technical conditions in accordance with JB/T8044. 5 Marking
5.1Marking example:
d-M5 Type A knurled nut with hole:
Yu Mei AM5JB/T8004.5-—1999
Basic size
Limit deviation H7
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