The CORE-BULK PB Quadrant Fastener kit comprises two solid polished brass components designed for securely fastening and adding an elegant finishing touch to sash windows or similar fixtures. The luxurious golden hue of the polished brass finish gives the parts a classic and refined look, suitable for both traditional and contemporary interiors. The kit contains a quadrant arm and a knob latch that work together to ensure a tight closure. No specific fire rating or certification is mentioned, and therefore, their suitability for fire-rated applications is unknown. Durability is implied in the solid construction, but without a specific EN standard or similar certification referenced, detailed performance metrics are not available.