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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

For detailed information, other images and documents, please select individual articles from the following table.

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

  • Material: Stainless steel A2
  • Surface: Plain
  • Nominal diameter: 4 mm
  • Head diameter: 9.4 mm
  • Head height: 1.8 mm
  • Internal drive: RW20
  • Approval: ETA-11/0190
  • Suitable for use in the following materials: Wood, Derived timber product, Solid wood panel (SWP), Hardwood, Softwood
  • Area of application: Shale, Roof
  • Head type: Rear wall head
  • Core diameter: 2.5 mm
  • Thread type: Wood screw thread
  • Thread design: Full thread
  • Thread format: Single thread
  • Shape of tip: Tip with hilltop milling cutter
  • Max. screw-in angle: 90 Degree
  • Min. screw-in angle: 0 Degree
  • RoHS-compliant: Yes

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Variants

You can refine your search by selecting different attributes

Art.-no. Length Thread length (lg) Material Surface Quantity PU
price/PU
0181814030
30 mm 27 mm Stainless steel A2 Plain
500 pcs
0181814040
40 mm 37 mm Stainless steel A2 Plain
500 pcs

Packaging unit

The packaging unit defines the number of articles in one packaging. In the catalog segment you can choose from different packaging units if a pop-up menu is displayed.

Just leave the field empty if you don't know the packaging unit when directly entering the article number in the shopping basket or when importing with Easy-/VarioScan. The packaging unit will be determined automatically.

Structure of our article number

The article number is made up of the following: VVVVAAABBB
VVVV = 4 digits for prefix number (please note that the first digit is currently always 0)
AAA = 3 digits for dimension part 1
BBB = 3 digits for dimension part 2

Example article number structures:
Example 1: Screw with dimensions of 4x10 mm:
VVVVAAABBB
00574 10 (2 spaces between the 4 and the 10)

Example 2: Screw with dimensions of 10x20 mm:
VVVVAAABBB
005710 20 (1 space between the 10 and the 20)

Example 3: Flat washer with an internal diameter of 6 mm:
VVVVAAABBB
04076

Information on price display

Price per packaging unit (PU):
The displayed price is always in line with the displayed packaging, if the PU is 250 the price for 250 units, if the PU is 300 the price for 300 units.

Price with price key representation (PSL):
The price always applies to a quantity ruled through the price key:
Price for 1 unit
Price for 100 units
Price for 1000 units

Quantity

The quantity shows the number of pieces or units of measure contained in the order or delivery for the respective article.
In contrast to sales packaging and secondary packaging, the disposal costs for chemical-technical products are shown separately. The breakdown of the individual costs can be found on the relevant products and also in the shopping cart, as well as in our General Terms and Conditions (GTC).
Art.-no. Cust. Mat. No.

Hazardous Material

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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