What is the primary function of a fastener?

The primary function of a fastener is to hold parts together securely. Fasteners, such as screws, bolts, nuts, and rivets, are designed to connect different components in a way that enables them to work together as a cohesive unit. When properly installed, fasteners provide the necessary strength and stability to keep these parts aligned and prevent them from separating or moving unintentionally during operation.

While bonding materials permanently, aligning components, and reducing friction are important aspects in certain contexts, the main role of fasteners overall is to ensure that assemblies remain intact and perform their intended functions effectively. By achieving this secure connection, fasteners play a critical role in the integrity and safety of mechanical systems.