What characteristic is common to water closet bolts made of brass?

Brass water closet bolts are known for their corrosion-resistant properties, which makes them a popular choice for plumbing fixtures like toilets. This characteristic is significant because toilet components are frequently exposed to moisture, and using materials that can withstand corrosion contributes to the longevity and reliability of the plumbing system.

Brass contains copper and zinc, which provide durability and resistance to rust and deterioration compared to materials like steel, which can easily corrode when exposed to water. This resistance is essential in maintaining the integrity of the plumbing system over time, as corrosion can lead to leaks and failures.

While brass bolts may indeed be heavier and potentially more expensive than other materials, being corrosion-resistant stands out as a defining feature that enhances their functionality and suitability for their intended use in a damp environment.