Monkey Tail Pewter Night Vent Fastener
Night vent fastener, screw fitted, these will screw into a mullion on a 20mm flat, leaving more room for mouldings. No need for trickle vents. They can be locked in the night vent and closed positions with a large head allen key. The nylon washer behind the handle is designed to reduce friction. Available in left or right hand version. Left hand pictured. Fixings supplied.