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ASSY® 4 WW CSMR 60 timber screw Steel zinc plated partial thread countersunk milling head
ASSY<SUP>®</SUP> 4 WW CSMR 60 timber screw Steel zinc plated partial thread countersunk milling head - 12
ASSY<SUP>®</SUP> 4 WW CSMR 60 timber screw Steel zinc plated partial thread countersunk milling head - 1
ASSY<SUP>®</SUP> 4 WW CSMR 60 timber screw Steel zinc plated partial thread countersunk milling head - 2

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ASSY® 4 WW CSMR 60 timber screw Steel zinc plated partial thread countersunk milling head

Universal partial-thread screw for robust use in timber construction or temporary anchors in a redundant non-structural system. The large RW recess ensures maximum load transmission for fast, gap-free fastening of wood-to-wood connections in dry indoor or wet areas.

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Available in 10 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


Easy countersinking in hard wood surfaces


  • Slightly smaller 60° countersunk head with increased head height for increased power transmission and exceptionally large drive for use in wood and formwork construction


Significant reduction in the amount of force required when fastening in the screw


  • Less splitting when immersing the shank due to the displacement milling effect of the milling shank

  • Minimised risk of screw breakage due to high breaking torque

  • Reduced risk of injury from protruding metal chips due to the integration of the milling shank into the thread

  • High protection of the application tools


No over-tightening or stripping and high feed


  • Higher power transmission in hardwoods due to reinforced, asymmetrical thread flank geometry of the coarse thread

  • Better anchoring thanks to higher thread flanks


Smooth thread start ensures optimised recessing and biting of the screw


  • Reduced splitting effect due to displacement effect of the dome-shaped milling elements in the tip

  • Friction-reduced thread rotation allows reduction of the screw-in force to be applied


High strength values and ductility


  • Adjusted heat treatment guarantees high strength values and high ductility
Notice
  • We recommend using the Würth software or the corresponding design aids for planning and dimensioning your assembly. Use the Würth timber construction software for dimensioning of ASSY screws from a diameter of 5 mm

  • Do not use the screw in applications with direct exposure to the elements or in humid rooms with atmospheres containing chlorine gas. If used outdoors and in rooms that are constantly exposed to high humidity, please use ASSY 4 A2 or A4 stainless steel screws and, if atmosphere contains chlorine, HCR stainless steel screws

  • 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

ETA-11/0190 approved

The requirements of the European Technical Approval (ETA) must be observed