JB/T 8043.1-1999 Hexagon head screws for machine tool fixture parts and components plastic fixtures

JB/T 8043.1-1999 This standard is a revision of JB/T 8043.1-95 "Hexagonal head screws for plastic fixtures of machine tool fixture parts and components". During the revision, only editorial changes were made according to relevant regulations, and the technical content was not changed. This standard specifies hexagonal head screws for plastic fixtures with thread specifications of M12×1.25~M24×1.5. This standard was first issued in 1981 as GB 2256-80, first revised to GB/T 2256-91 on April 30, 1991, and adjusted to JB/T 8043.1-95 in April 1996. JB/T 8043.1-1999 Hexagonal head screws for plastic fixtures of machine tool fixture parts and components JB/T8043.1-1999 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 fixturesHexserew for plastic fixture
This standard specifies the hexagon head screws for plastic fixtures with thread specifications of M12×1.25~M24×1.5. Cited standards
JB/T 8043.1-1999
Replaces JB/T8043.1-1995
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/T699-1988
Technical conditions for high-quality carbon structural steel
JB/T8043.3-1999Machine tool fixture parts and componentsPlastic clamps and plungers for themJB/T8044-1999
3 Dimensions
Technical requirements for machine tool fixture parts and componentsWww.bzxZ.net
The dimensions are shown in the following figure and table.
JB/T 8043.3
Approved by the State Bureau of Machinery Industry on August 6, 1999 and implemented on January 1, 2000
M12×1.25
4 Technical conditions
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:
JB/T8043.1-1999
Limit deviation
Hexagon head screw for plastic fixture with d=M16×1.5, L=30mm: screw M16×1.5×30JB/T8043.1—1999248
M10 left
M12 left
M16 left
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