To prevent corrosion on fasteners, and to improve their looks, ... Zinc. It is the most commonly used plating. It leaves a white to blue-grey finish and costs little to apply.

“Those fasteners are made of carbon steel,” Christensen said. “Then they’re plated with a zinc plating most times. But of course, stainless steel is a big, popular part, also.” ...

Usually, fasteners are dipped in a solution of zinc or manganese phosphate and processed through tumbling barrels. Phosphate coating is less expensive than zinc or cadmium plating, especially when ...

“Those fasteners are made of carbon steel,” Christensen said. “Then they're plated with a zinc plating most times. But of course, stainless steel is a big, popular part, ...