What type of head styles do Hi-Shear rivets have?

Hi-Shear rivets are specifically designed for aerospace applications, where high strength and lightweight materials are critical. The head styles of Hi-Shear rivets are flat protruding and 100-degree countersunk.

The flat protruding head provides a smooth, flush finish after installation, which is particularly important in applications where aerodynamic efficiency is a priority. The 100-degree countersunk head allows these rivets to sit flush with the surface of the material being joined, ensuring a streamlined profile that minimizes drag.

Understanding the importance of these head styles in aerospace applications helps to recognize why these particular designs are utilized. The flat head style is beneficial for general applications, while the countersunk style helps in applications where a smooth finish is necessary. This design consideration directly impacts performance and integrity in aviation environments.