This section specifies thickness, corrosion protection, and technical requirements about mechanical and physical properties of steel fastener with regular screw threads.
This section is applicable to passivated or non-passivated zinc flake coatings.
Zinc flake coatings specified in this section also may be used for cutting or roll milling matchable screws with internal thread, such as wood screws, tapping screws, drilling screws with tapping screw thread, thread rolling screws; positive thread and rolled thread, as well as unthreaded steel fastener like gasket and pin. This section also may be used for similar twisted steel parts of other types.
Zinc flake coatings specified in this section also can provide self-lubrication and (or) post-added lubrication.
GB/T 5267.2-2002 The following standards are cited：
