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ASSY® 4 A2 BP slate screw A2 stainless steel plain full thread back panel head
ASSY<SUP>®</SUP> 4 A2 BP slate screw A2 stainless steel plain full thread back panel head - 1
ASSY<SUP>®</SUP> 4 A2 BP slate screw A2 stainless steel plain full thread back panel head - 2
ASSY<SUP>®</SUP> 4 A2 BP slate screw A2 stainless steel plain full thread back panel head - 3
ASSY<SUP>®</SUP> 4 A2 BP slate screw A2 stainless steel plain full thread back panel head - 4
ASSY<SUP>®</SUP> 4 A2 BP slate screw A2 stainless steel plain full thread back panel head - 5
ASSY<SUP>®</SUP> 4 A2 BP slate screw A2 stainless steel plain full thread back panel head - 6
ASSY<SUP>®</SUP> 4 A2 BP slate screw A2 stainless steel plain full thread back panel head - 7
ASSY<SUP>®</SUP> 4 A2 BP slate screw A2 stainless steel plain full thread back panel head - 8
ASSY<SUP>®</SUP> 4 A2 BP slate screw A2 stainless steel plain full thread back panel head - 9

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ASSY® 4 A2 BP slate screw A2 stainless steel plain full thread back panel head

Full-thread screw made of high-quality austenitic A2 stainless steel with large flat washer head for fixing roof slates or thin metal sheets in the food industry in wood in outdoor areas exposed to the elements

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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


Powerful connection of e.g. thin fibreboards for furniture back panels


  • Large flat-shaped washer head for a strong connection of e.g. thin fibreboards in furniture back panels

  • Visually appealing flat screw connection

  • Large head diameter with small thread diameter for a strong connection


Higher breaking torque


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


Stainless mounting for accessible wood connections in outdoor areas exposed to weathering


  • Made of austenitic, non-magnetic and non-rusting A2 stainless steel

  • Can be used in rural or urban environments or industrial atmospheres without significant exposure to chlorides or SO2

  • With friction-reducing slide coating for easy fastening
Notice
  • Austenitic stainless steel is characterised by a high degree of corrosion resistance against aggressive industrial air, sea air, tap water, river water, mine water and salt water, as well as woods containing tannic acid. It is resistant to acid to a certain extent and not suitable for atmospheres containing chlorine gas

  • 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

  • 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