JB/T 8004.3-1999 JB/T 8004.3-1999 Machine tool fixture parts and components connecting nuts JB/T8004.3-1999 Standard download decompression password: www.bzxz.net
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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 fixturesConrecting nut This standard specifies the connecting nuts with thread specifications of M12~M48. Referenced Standards JB/T8004.3—1999www.bzxz.net Subsequent JB/T8004.3-1995 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. 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/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 and implemented on January 1, 2000 4 Technical conditions JB/T8004.3-1999 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: dM12 connecting nut: Nut M12JB/T8004.3—1999 Limit deviation Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.