glazing stop

glass stop

2. A fitting which holds the lower end of a patent glazing bar; prevents the pane from sliding down.
References in periodicals archive ?
To make them feel less exposed and to allow space for radiators, the glazing stops at knee level in the classrooms.
It now provides a redesigned glazing pocket as well as wet and dry glaze options for hurricane impact and blast mitigation, accommodating glazing for i" to 1" with a variety of glazing stops and gaskets.