Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by general context]
6. hardware (components)
7. [hardware by form]
8. finish hardware (hardware)
9. [hinges and hinge components]
10. hinges (hardware)
11. [hinges by form]

Anotations

Scope note:

Jointed plates or leaves that allow swinging motion in a single plane of one of the members to which they are attached, such as a door or gate, and formed in the shape of the letter 'H' but with an additional right-angled element on one component of the hinge.