Fastener Material Finishes Compared

Last up dated on March 16, 2007

Finish	Finish Color	Corrosion Resistance	Suggested Material
Black Zinc	Black	Very Good	All
Brass	Brass	Fair	Steel
Bronze	Varied	Fair	Steel
Cadmium	Silver Gray	Very Good	Steel
Chromium	Bright Bluish White	Very Good	Most Metals
Copper	Copper	Fair	Steel
Iridite	Olive, Green, Black, Red, Blue, Bronze	Good	Ferrous Metals
Nickel	Silver	Very Good	Steel
Oxide (Black)	Luster Black	Fair	All
Painted	Any	Good	All
Parkerized	Dull Gray, Black	Fair	Steel
Phos. & Oil	Black	Very Good	Steel
Tinning (electro)	Silver, Gray	Good	Steel
Zinc (electro-galvanized)	Gray	Good	Steel
Stalgard	Dull Silver	Excellent	All

Finish