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ASSY®plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head
ASSY<SUP>®</SUP>plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head - 1
ASSY<SUP>®</SUP>plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head - 2
ASSY<SUP>®</SUP>plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head - 3
ASSY<SUP>®</SUP>plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head - 4
ASSY<SUP>®</SUP>plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head - 5
ASSY<SUP>®</SUP>plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head - 6
ASSY<SUP>®</SUP>plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head - 7
ASSY<SUP>®</SUP>plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head - 8
ASSY<SUP>®</SUP>plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head - 9
ASSY<SUP>®</SUP>plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head - 10

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ASSY®plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head

Special full threaded screw with raised countersunk head and restraining ribs for gap-free fastening close to edges. For mounting of metal fittings to timber windows without pre-drilling the wood

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Available in 5 versions

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Ideal power transmission thanks to RW drive


  • More power due to larger contact area at the bit

  • More stability, one-handed working, precise positioning due to the tight-fit recess and perfect fit of the bit

  • Fewer bit changes, one bit for many screw diameters

  • Compatibility with previous AW drive


Visually appealing connections in window construction


  • Lens-shaped, rounded head for a visually appealing window fitting connection

  • The spring-loaded effect of the restraining ribs prevents the screw from overturning and destroying the head


Maximum reliability of the screw connection due to asymmetrical single thread


  • Optimal matching of drill tip and thread geometry

  • Excellent anchoring in wood due to asymmetrical arrangement of thread flanks


Small edge distances


  • Drilling in locations with small permissible edge distances (3xd) is possible thanks to a wedge-shaped drill tip with parallel cutting edges

  • Assembly without gaps

  • The wood does not split and rupture
Notice
  • Do not use the screw in applications with direct exposure to the elements or in humid rooms with atmospheres containing chlorine gas. Please use ASSYplus 4 stainless steel screws for outdoor applications and rooms with constant high humidity

  • We recommend using the Würth software or the corresponding design aids for planning and dimensioning your assembly. Dimensions of the ASSY screws can be carried out in the Würth timber construction software from a ∅ of 5 mm

  • ASSY 4, ASSYplus 4 and ASSYplus 4 FT chipboard screws are optimised for use in wood and wood materials. For applications in plastic anchors where load capacity can also be reduced, use only screws without an optimised thread tip (tip with milling ribs, drill tip, self-clearing groove etc.), such as the ASSY D screws with countersunk head or pan head