What type of fasteners are generally used in aircraft construction because of their reliability?

Rivets are the preferred type of fasteners used in aircraft construction primarily due to their reliability and structural integrity. They create permanent joints that are capable of withstanding the various stresses and strains that an aircraft experiences during flight. Riveting provides a smooth surface on the exterior of the aircraft, which aids in aerodynamics and reduces drag.

Additionally, rivets are advantageous in terms of weight; they offer a strong connection without adding excessive mass, which is a critical consideration in aviation design. The riveting process ensures uniformity and strength across the joint, which is essential for maintaining the safety and durability of aircraft structures.

While other fasteners like bolts and self-tapping screws might be used in some applications, they do not provide the same level of strength, reliability, and permanence that rivets offer in critical structural components of an aircraft. Welds, while strong, are less common in aircraft construction due to issues related to heat distortion and the limitations in the types of materials that can be welded effectively. Thus, rivets stand out as the most reliable and preferred choice for fastening in aviation contexts.