What are semi-permanent fasteners primarily used for?

Semi-permanent fasteners are primarily used for assembling parts together in applications where they may need to be disassembled, but not frequently. This type of fastener allows for a reliable and strong connection between components, which is essential in various aviation structures and assemblies.

When components are joined with semi-permanent fasteners, they can maintain structural integrity during operation, and yet allow for eventual disassembly for maintenance or replacement purposes when needed. Compared to more permanent fastening methods, semi-permanent solutions offer flexibility in design and maintenance processes in aerospace applications while still ensuring that parts are securely joined.

Other options like cutting metal, holding objects firmly, or securing tools do not accurately define the primary function of semi-permanent fasteners, which emphasizes their role in assembly rather than other operational or engagement tasks.