For which specific requirement are some special fasteners designed?

Special fasteners are designed primarily for easy installation and removal. This specific requirement is crucial in various applications where components need to be frequently accessed, maintained, or replaced. Such fasteners may feature designs that allow them to be fitted and removed without the need for specialized tools or techniques, enhancing efficiency and reducing downtime during maintenance activities.

Fasteners that prioritize easy installation and removal support the operational needs of aircraft and machinery, where rapid servicing can be essential. This is particularly relevant for naval aviation, where maintaining the aircraft's performance and readiness is paramount.

In contrast, other options such as low-strength applications, permanent bonding, and weather resistance serve different purposes that are not the primary focus of specialized fasteners meant for convenient assembly and disassembly.