Excellent durability for outdoor and indoor use An innovative double-layer coating ensures high corrosion resistance, making the screws the ideal choice even for demanding C4(15) conditions. Stress-tested to withstand the harsh C4 weathering class for at least the design strength (15 years).High quality standards and safety This is a CE-marked construction product with technical design values confirmed by ETA assessment, confirming the reliability and safety of the products. ETA approval: ETA-12/0471.Designed for easy and quick installation The SmartFix tip on the tip of the screw ensures that the screw bites into the wood from the first contact. The asymmetric thread and the milling grooves on the shank reduce the required torque, speeding up the installation process. The Torx head ensures a good grip, and the grooves under the heel recess the heel neatly into the wood surface, giving a finished result.Application area Fix master ULTRA C4(15) wood screws are suitable for both interior and exterior use. Internal torsion/strain: TX30 Nominal diameter: 6.0mm Head/shank diameter: 11.5 mm Material: steel Head/shank type: countersinking countersunk head, countersinking slots/milling slots and milling pockets Deck details: milling pockets/deep grooves Deck/deck design: Internal TX groove Thread type: Wood screw thread Thread type: Rare thread Thread type: Partial thread
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