fasteners
nounUK /ˈfɑːsənəz/
US /ˈfæsənərz/
Fasteners are small things like buttons or zippers that hold parts together.
The jacket has strong fasteners so it stays closed in the wind.
OTHER MEANINGS
2. Metal pieces such as screws or bolts used to join materials.
The carpenter bought fasteners to attach the shelves to the wall.
3. Devices that keep a door or window shut.
Check that all the window fasteners are locked before you leave.
4. Things that fix or secure something in place.
The seat belt fasteners must click loudly to show they are safe.