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The fischer Universal Plug UX 8 x 50 SK NV (90879) is an advanced, torqueoptimised nylon fixing designed for secure anchoring in virtually all building materials, including solid substrates, perforated bricks, aerated concrete, and panel materials. Its unique UX geometry expands and knots depending on the base material, ensuring reliable load transfer whether used with wood screws or chipboard screws. The 8 50 mm body provides deep embedment for enhanced pullout resistance, while integrated antirotation features prevent spinning during installation. The plugs flexible ribs and internal guidance channels ensure centred screw insertion and controlled expansion. Manufactured from highgrade polyamide for longterm durability, it is suitable for fixtures such as brackets, rails, shelves, and electrical hardware. The SK NV variant includes a rimless design for flush mounting, delivering a clean finish and stable, vibrationresistant performance.
