fixing
n. countablen. a small part used to attach or hold something in place, like a screw or a hook. It can also mean the act of repairing something that is broken.
n. a small attachment or fastener used to secure one object to another. Often used in the plural to refer to the collective hardware required for an installation.
The shelf fell because the wall fixing was loose.
The kitchen installation kit includes all the necessary fixings such as screws, brackets, and wall plugs.
Standard architectural specifications require that every external fixing be made of stainless steel to prevent corrosion and ensure the long-term structural integrity of the facade.
Commonly used in the plural ('fixings') in British English to refer to hardware; in American English, 'fasteners' is more frequent.