Carriage bolts, 5/16"-18 x 3-1/2"

A corrosion resistant steel alloy. The most common stainless steel for general hardware use.

A highly corrosion resistant grade of stainless steel. Ideal in salt water and chlorine environments.

A low carbon steel for general use. Zinc plated for moderate corrosion resistance.

Grade 5 falls between grade 2 and grade 8 in strength, and is commonly found in automotive applications. A low carbon steel for general use. Zinc plated for moderate corrosion resistance.

A low carbon steel for general use. Hot dipped galvanized is a coating for very good corrosion resistance.

Solid bronze. An alloy of copper with greater strength and corrosion resistance than brass. Exact color varies.