The finish of a fastener is the term used to describe the surface coating applied to the fastener.
Fastener finishes are available from Exafast .
The function of the surface coating may be to protect the fastener against corrosion or to provide a decorative finish, or both. Australian practice is to specify the following finishes for the majority of carbon steel fastener purchases.
- Plain (natural) or black
- Zinc electroplated
- Hot-dip galvanised