JB/T 8004.11-1999 Nuts for T-slots of machine tool fixture parts and components

JB/T 8004.11-1999 This standard specifies the nuts for Dacron T-slots with thread specifications of M4~M48. This standard is used in conjunction with the international standard ISO 299:1973 "Machine tool table T-slots and corresponding bolts". This standard was first published in 1983 as JB 3409-83 and revised for the first time in 1991 as GB/T 12868-91. JB/T 8004.11-1999 Nuts for T-slots of machine tool fixture parts and components JB/T8004.11-1999 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 units of jigs and fixtures
The parts and units of jigs and fixtures1999-08-06 Issued
State Machinery Industry Bureau
Implementation on 2000-01-01
Standard of the Machinery Industry of the People's Republic of China
Parts and units of jigs and fixtures
The parts and units of jigs and fixturesT-slot nut
This standard specifies nuts for T-slots with thread specifications of M4 to M48. JB/T 8004.111999
This standard is used in conjunction with the international standard ISO299:1973 "Machine tool tables-T-slots and corresponding bolts". 2 Referenced standardsbzxz.net
The clauses contained in the following standards constitute the clauses 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—1988
JB/T8044—1999
ISO 299:1973
3 Dimensions
Technical conditions for high-quality carbon cable structural steel
Technical requirements for machine tool fixture parts and components
Machine tool worktable-T-slot and corresponding bolt dimensions are shown in the following figure and table.
Approved by the State Machinery Industry Bureau on August 6, 1999, 20
Implemented on January 1, 2000
Basic dimensions
4 Technical conditions
Limit deviations
JB/T8004.11—1999
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 JB/T8044.
5 Marking
5.1 Marking example:
d-M20 T-slot nut:
Nut M20JB/T8004.11—1999
Limit deviation
Basic size
Limit deviation
Applicable width
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