SN EN ISO 10684 : 2004 CORR 2009

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Materials
   4.1 Raw material of parts
   4.2 Zinc
5 Hot dip galvanizing procedures and precautions
   5.1 Stress relief
   5.2 Cleaning and pickling
   5.3 Baking
   5.4 Fluxing
   5.5 Hot dip galvanizing
   5.6 Spinning and quenching
   5.7 Special requirements for nuts
   5.8 Post-treatment
6 Requirements on thread tolerances and additional marking
   6.1 General
   6.2 Requirements and precautions in assembling hot dip
       galvanized threaded fasteners
   6.3 Special requirements for marking when supplying
       fasteners in sealed containers
7 Mechanical properties of nuts tapped oversize and
   undersize threaded bolts, screws and studs
8 Coating requirements
   8.1 Appearance of zinc coating
   8.2 Considerations for hot dip galvanized washers
   8.3 Zinc coating thickness
   8.4 Adhesion of zinc coating
9 Lubrication
10 Ordering requirements
11 Designation
Annex A (normative) Special requirements for bolts, screws
        and nuts with thread sizes M8 and M10
Annex B (normative) Limits of sizes for hot dip galvanized
        internal and external screw thread M8
Annex C (informative) Calculation of minimum ultimate tensile
        loads and proof loads for bolts and screws M8 and M10
        with threads undersized to tolerance class 6az
Annex D (informative) Surface areas of bolts, screws and nuts
Annex E (normative) Adherence of hot-dip galvanized coating
Annex F (informative) Strength of hot dip galvanized bolt or
        screw and nut assemblies

Provides material, process, dimensional and some performance requirements for hot dip spun galvanized coatings applied to coarse threaded steel fasteners from M8 up to and including M64 and for property classes up to and including 10.9 for bolts, screws and studs and 12 for nuts.