What is the name of the part referred to as the pike in flag nomenclature?

In flag nomenclature, the term "pike" specifically refers to the flagpole or the flag itself when it is attached to the pole. This terminology is commonly used in various contexts, particularly in color guard or military units where flags are prominently displayed. The pike serves as the part that bears the flag, allowing it to be raised and unfurled, symbolizing its importance during ceremonies or parades.

The other options do not accurately represent the definition of "pike" within the context of flag nomenclature. The upper collar pertains to a different aspect of flag handling, the thirteen screws might refer to a specific design feature on certain flags or poles, and the vertical pole, while related to the display of the flag, does not capture the full concept of the pike as it relates to flag imagery and presentation. Thus, identifying the flag itself in this context as the pike underscores its integral role in the complete flag system.