This standard specifies the types, dimensions, specifications and designation of hexagon head bolts with full thread of Grade C.
This standard is applicable to hexagon head bolts with threads from M5 to M64, full thread, of performance grades 4.6 and 4.8, and of product grade C.
Note: This type of product is the same as that covered by IGB/T 5780 with the exception of full thread.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 90.1 Fasteners - Acceptance Inspection (GB/T 90.1-2002, IS0 3269:2000, IDT)
GB/T 90.2 Fasteners - Marking and Packaging
GB/T 193 General Purpose Metric Screw Threads - General Plan (GB/T 193-2003, ISO 261:1998, MOD)
GB/T 1237 Designation System for Fasteners (GB/T 1237-2000, eqv ISO 8991:1986)
GB/T 3098.1 Mechanical Properties of Fasteners - Bolts, Screws and Studs (GB/T 3098.1-2010, ISO 898-1:2009, MOD)
GB/T 3103.1 Tolerances for Fasteners - Bolts, Screws and Nuts (GB/T 3103.1-2002, idt ISO 4759-1:2000)
GB/T 5267.1 Fasteners - Electroplated Coatings (GB/T 5267.1-2002, ISO 4042:1999 , IDT)
GB/T 5267.2 Fasteners - Non-electrolytically Applied Zinc Flake Coatings (GB/T 5267.2-2002, ISO 10683:2000, IDT)
GB/T 5276 Fasteners - Bolts, Screws, Studs and Nuts - Symbols and Designations of Dimensions (GB/T 5276-2015, ISO 225:2010, MOD)
GB/T 5780 Hexagon Head Bolts - Product Grade C (GB/T 5780-2016, ISO 4016:2011, MOD)
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)
3 Dimensions
See Figure 1 and Tables 1 and 2 for types and dimensions of bolts.
Symbols and descriptions of dimensions are specified in GB/T 5276.
