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Screw Features & Special Properties
Special properties
    A. T-STAR plus: secure bit grip, no cam-out effect, optimal force transmission
    B. WIROX P3J: The surface with extremely high protection against corrosion
    C. Cylindrical head: low splitting effect, pulls flush into the wood
    D. Full thread: absorption of high tensile and compressive forces
    1. 4CUT: allows screwing in without pre-drilling (wood-dependent), reduces splitting as square end displaces the fibres
    2. Ground serrations: up to the point – quick and secure fastening