GB/T 5267.3-2008 (English Version) Fasteners.Hot dip galvanized coatings

Standard No.: GB/T 5267.3-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 5267.3-2008

Scope: This part specifies the materials, processes, dimensions and certain specifications for hot-dip galvanized coatings of M8-M64 steel coarse-threaded fasteners, bolts, screws and studs with property classes up to 10.9, and nuts with property classes up to 12. characteristic. Hot-dip galvanizing is not recommended for threaded fasteners with specifications smaller than M8 and (or) pitch smaller than 1.25mm. This standard is primarily intended for hot-dip galvanizing of steel threaded fasteners, but is also applicable to other steel threaded parts. The specifications given in this standard also apply to steel non-threaded parts, such as washers.

GB/T 5267.3-2008 Referenced Document

GB/T 12334 Metallic and other inorganic coatings--Definitions and conventions concerning the measurement of thickness
GB/T 1237 Designation system for fasteners
GB/T 13825 Metallic coatings.Hot dip galvanized coatings on ferrous materials.Gravimetric determination of the mass per unit area
GB/T 13912 Metallic coatings—Hot dip galvanized coatings on fabricated iron and steel articles—Specifications and test methods*， 2020-06-02 Update
GB/T 197 General purpose metric screw threads—Tolerances*， 2018-03-15 Update
GB/T 22028 Hot-dip galvanized screw threads-On internal screw threads there is the clearance for accommodating the hot-dip galvanized coat
GB/T 22029 Hot-dip galvanized screw threads.On external screw threads there is the clearance for accommodating the hot-dip galvanized coat
GB/T 2516
GB/T 3098.1 Mechanical properties of fasteners.Blots, screws and studs*， 2011-01-10 Update
GB/T 3098.2 Mechanical properties of fasteners.Nuts*， 2015-12-10 Update
GB/T 4956 Non-magnetic coatings on magnetic substrates--Measurement of coating thickness-Magnetic method
GB/T 9145 General purpose metric screw threads--Limits of sizes for the screw threads of medium quality and preferable plan