JB/T 8043.2-1999 Hexagon socket screws for machine tool fixture parts and components plastic fixtures

JB/T 8043.2-1999 JB/T 8043.2-1999 Hexagon socket screws for machine tool fixture parts and components Plastic fixtures JB/T8043.2-1999 Standard download decompression password: www.bzxz.net

ICS 25. 080. 01
Machinery 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
Machinery Industry Standard of the People's Republic of China
Parts and units of jigs and fixtures
The parts and units of jigs and fixturesInner hexagon screw for plastic fixturefixtureThis standard specifies the hexagon socket screws for plastic fixtures with thread specifications of M12×1.25~M24×1.5. 2 Referenced standards
JB/T8043.2—1999
Replaces JB/T8043.2—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/T 699-1988
Technical conditions for high-quality carbon structural steel
JB/T8043.3—1999Machine tool fixture parts and components.Plungers for plastic fixturesJB/T8044—1999
3 Dimensions
Technical requirements for machine tool fixture parts and components
The dimensions are shown in the following figure and table.
JB/T8043.3
Approved by the State Bureau of Machinery Industry on August 6, 1999 and implemented on January 1, 2000
M12×1.25bZxz.net
4 Technical conditions
JB/T8043.2—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 the provisions of JB/T8044. 5 Marking
5.1 Marking example:
Limit deviation
M10 left
M12 left
M16 left
d-M16x1.5, L=35mm Hexagon socket screw for plastic fixture: screw M16×1.5×35JB/T8043.2—1999250
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