The fischer universal fixing UX is a plastic fixing made of high-quality nylon. The fischer universal fixing expands in solid building materials and knots in hollow building materials for maximum hold. -Plug holds in all building materials - Plug expands in solid building materials - Maximum hold in solid and hollow building materials due to knotting -Installation safety due to anti-rotation lock Fischer Nylon UX-R Universal Plug with Rim 6 x 50mm (100 Pack) in Grey. This pack of 100 nylon multipurpose plugs from Fischer are ideal for use in concrete, brickwork, stone, block work, plasterboard (maximum loads: 10 kg) and hollow materials (maximum loads: 20 kg).