Which components make up a Hi-Lok fastener?

The correct choice identifies the components of a Hi-Lok fastener as a stud (pin) and collar. A Hi-Lok fastener is a specialized type of fastening system commonly used in aviation applications due to its reliability and ease of installation. The stud, or pin, serves as the primary element that is inserted through the materials being joined, while the collar is a cylindrical component that is threaded to fit onto the stud.

When the collar is tightened onto the stud, it creates a secure connection that is resistant to vibration and loosening, which is crucial in aircraft structures that undergo significant stress and movement during operation. This design allows for quick installation and removal compared to traditional methods, making it preferred in aerospace applications.

Other options, though related to fastening systems, do not accurately describe the specific components of a Hi-Lok fastener. Nuts and bolts are typical in many fastening scenarios, washers and screws serve different structural purposes, and rivets and plates are entirely different fastening types. Understanding the unique design and components of the Hi-Lok fastener is essential for anyone working in aviation maintenance and repair.