A round head bolt, also known as a button head bolt, is a type of fastener that features a rounded, dome-shaped head on one end and a threaded shank on the other. The design of the round head provides a smooth, sleek appearance that is often used in applications where aesthetics are important or where a flush finish is desired. Round head bolts can be made from various materials, including steel, stainless steel, aluminum, and brass, depending on the specific requirements of the application, such as strength, corrosion resistance, and weight considerations. Round head bolts offer a practical and visually appealing solution for securing components together in a wide range of industries and applications.