1 Scope
This standard specifies the characteristics of hexagon head bolts with threads from M5 to M64, full thread, of property classes 3.6, 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.
If specifications other than those listed in this standard are required, they should be selected from existing standards (for example GB/T 196, GB/T 3106, GB/T 3098.1 and GB/T 3103.1).
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and Parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the Standards indicated below.
GB/T 90-1985 Acceptance inspection, marking and packaging of fasteners (eqv ISO 3269:1984)
GB/T 196-1981 General purpose screw threads — Basic dimensions for diameter from 1 to 600mm
GB/T 197-1981 General purpose screw threads — Tolerances and fits for diameter from 1 to 355mm
GB/T 1237-2000 Designation system for fasteners (eqv 8991:1986)
GB/T 3098.1-2000 Mechanical properties of fasteners — Bolts, screws and studs (eqv ISO 898-2:1992)
GB/T 3103.1-1982
(Confirmed in 1988) Tolerances for fasteners — Bolts, screws and nuts (eqv ISO 4759-1:1978)
GB/T 3106-1982
(Confirmed in 1988) Bolts, screws and studs — Nominal lengths and thread lengths for general purpose bolts (eqv ISO 888:1976)
GB/T 5267-1985 Electroplated coatings on threaded fasteners
GB/T 5276-1985 Fasteners — Bolts, screws, studs and nuts — Symbols and designations of dimensions (eqv ISO 225:1983)
GB/T 5780-2000 Hexagon head bolts — Product grade C (eqv ISO 4016:1999)
GB/T 16938-1997 Fasteners — General requirements for blots, screws, studs and nuts (idt ISO 8992:1986)
ISO 10683:2000 Fasteners — Non-electrolytically applied zinc flake coatings
