The Fischer Countersunk Frame Fixing (L)100mm (Dia)10mm, Pack of 4, offers reliable and secure mounting for window and door frames. Designed for use in concrete, masonry, and natural stone, these frame fixings ensure a strong hold thanks to their expanding nylon plug and countersunk head design. Each fixing is engineered for easy installation with a flush finish, making them ideal for professional construction and DIY applications. The durable Fischer quality ensures long-lasting performance in both indoor and outdoor settings. With a convenient pack of four, this product is perfect for medium-sized projects requiring precise and robust frame fixing solutions.