What type of strength do structural screws provide?

Structural screws are specifically designed to provide shear and tensile strength, which are critical for ensuring the integrity and stability of structures in various applications. Shear strength refers to the ability of the screw to resist forces that could cause parts of a structure to slide past one another. Tensile strength, on the other hand, is the capacity of the screw to withstand pulling or stretching forces without breaking.

In aviation and construction, it is crucial that bolts and screws maintain their integrity under different loads to ensure safety and reliability. The use of structural screws with high shear and tensile strength is vital, especially in high-stress environments like those encountered in aircraft components.

The other options do not pertain to the core function of structural screws. Electrical strength relates to components that insulate or conduct electricity, thermal resistance pertains to materials that withstand high temperatures, and aesthetic strength involves visual appeal rather than structural capability.