QC/T 869-2011 in English

1 Scope

This standard specifies the types and dimensions as well as technical specification of short-cycle drawn arc welding studs.
This standard is applicable to short-cycle drawn arc welding studs with thread sizes of M3~M10 and mechanical properties of Levels 4.8 and 8.8 and used for automobiles.

2 Normative References

The following documents for the application of this standard are essential. Any dated reference, just dated edition applies to this standard. For undated references, the latest edition (including any amendments) applies to this standard.
GB/T 90.1 Fasteners - Acceptance Inspection (ISO 3269)
GB/T90.2 Fasteners - Marking and Packaging
GB/T 196 General Purpose Metric Screw Threads - Basic Dimensions (ISO 724)
GB/T 197 General Purpose Metric Screw Threads - Tolerances (ISO 965-1)
GB/T 3098.1 Mechanical Properties of Fasteners - Bolts, Screws and Studs (ISO 898-1)
GB/T 3103.1 Tolerances for Fasteners - Bolts, Screws, Studs and Nuts (ISO 4759-1)
GB/T 5779.1 Fasteners - Surface Discontinuities - Bolts, Screws and Studs for General Requirements (ISO 6157-1)
QC/T 326 Numbering Rules for Automobile Standardized Parts
QC/T 625 Metallic Coatings and Conversion Coatings for Automobile

3 Types and Dimensions

See Figure 1 and Table 1 for types and dimensions of short-cycle drawn arc welding studs.

Foreword i
1 Scope
2 Normative References
3 Types and Dimensions
4 Technical Specifications
5 Product Number