How many types of cleco fasteners are commonly recognized based on size and color?

The correct number of types of cleco fasteners commonly recognized based on size and color is indeed six. Cleco fasteners are crucial in the aviation industry for temporarily holding pieces of material together during assembly or fabrication. They come in different sizes and colors, with each type denoting specific features such as diameter and clamping range.

The colors of cleco fasteners correspond to their size — with each color representing a different dimension. This system allows mechanics to easily identify the appropriate type for a given application. The six types typically referenced include 1/8", 3/16", and 1/4" sizes, among others, which may also further include variations in length and capability based on design requirements.

Having a clear understanding of these types is essential for ensuring that the correct fasteners are used for specific tasks, contributing to the structural integrity of aircraft components during the assembly process.