Wiktionary
press stud
n. snap fastener
WordNet
press stud
n. a fastener used on clothing; fastens with a snapping sound; "children can manage snaps better than buttons" [syn: snap, snap fastener]
Usage examples of "press stud".
I went into the bedroom, picked the jacket off the bed and transferred the Luger from my trousers into its built-in underarm holster, fastening it there with a press stud on a strap.
The youth stood his ground and his thumb loosened the press stud on the holster and his fingers closed round the butt of the revolver.