JB/T 8004.6-1999 This standard is a revision of JB/T 8004.6-95 "Rhombus nuts 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 rhombus nuts with ordinary thread specifications of M4 to M16. This standard was first issued in 1981 as GB 2153-80, first revised to GB/T 2153-91 on April 30, 1991, and adjusted to JB/T 8004.6-95 in April 1996. JB/T 8004.6-1999 Rhombus nuts for machine tool fixture parts and components JB/T8004.6-1999 Standard download decompression password: www.bzxz.net
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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 fixtures1999-08-06 Issued State Machinery Industry Bureau Implementation on 2000-01-01 Machinery Industry Standard of the People's Republic of ChinabzxZ.net Parts and units of jigs and fixtures Rhombic nut This standard specifies rhombic nuts with thread specifications of M4~M16. 2 Referenced standards JB/T8004.6—1999 Replaces JB/T8004.6—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/T8044-1999Technical requirements for machine tool clamps and their parts and components3 Dimensions 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 4.1 Material: 45 steel in accordance with the provisions of GB/T699. 4.2 Heat treatment: 35~40HRC. 4.3 Other technical conditions shall be in accordance with the provisions of JB/T8044. 5 Marking 5.1 Marking example: d-M10 diamond nut: M10JB/T8004.6—1999 JB/T 8004.6—1999 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.