This standard specifies the types, dimensions, specifications and designation of hexagon nuts, style1.
This standard is applicable to Grades A and B hexagon nuts, style 1, with threads of M1.6~M64, and performance grades of 6, 8 and 10, A2-50, A2-70, A4-50, A4-70, CU2, CU3 and AL4. Grade A products are used for nuts with D less than or equal to 16mm; Grade B products are used for nuts with D greater than 16mm.
Note: for hexagon nuts, style 2, see GB/T 6175.
2 Normative References
The following documents for the application of this document are essential. For dated reference, just dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 9145 General Purpose Metric Screw Threads - Limits of Sizes for the Screw Threads of Medium Quality and Preferable Plan (GB/T 9145-2003, ISO 965-2:1998, MOD)
GB/T 16938 Fasteners - General Requirements for Blots, Screws, Studs and Nuts (GB/T 16938-2008, ISO 8992:2005, IDT)
