Machine bolts are made from multiple metals and are applied, hence the name, metal to metal which is commonly found on different types on machines. Machine bolts are made from a variety of types and grades to suffice for the abundance of applications machine bolts are used.
Common bolts types include silicone bronze, brass, stainless steel, and zinc plated bolts
- Zinc plated bolts: Steel that is zinc plated. Zinc plated inserts offer moderate protection against rust.