Full-thread screw with countersunk head for fastening fittings or cabinet connectors in wood or wooden panels in indoor dry or sheltered areas
Ideal power transmission thanks to RW drive
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
- For fitting connection with full-thread steel screws
- Perfect fit of 90° head in fitting parts with metal countersinks
- Pulls together without head milling due to lack of milling elements below the head
- The head is inserted by pressing
- Higher power transmission in hardwoods due to reinforced, asymmetrical thread flank geometry of the coarse thread
- Better anchoring thanks to higher thread flanks
- 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
- 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
UOM
MinOrderQuantity | 250 |
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Technical Information
RoHS-compliant | Yes |
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Material | Hardened steel |
Nominal diameter | 4.5 mm |
Length | 60 mm |
Thread type | Wood screw thread |
Head diameter | 8.9 mm |
Head type | Countersunk head |
Thread length (lg) | 50 mm |
Thread design | Full thread |
Thread format | Coarse thread |
Core diameter | 2.7 mm |
Suitable for use in the following materials | WoodDerived timber productSoftwoodBoard ply woodHardwoodLVL |
Area of application | UniversalFurnitureBodyFittingInterior fitting |
Approval | ETA-11/0190 |
Angle of the tip | 28 Degree |
Min./max. screw-in angle | 0-90 Degree |
Product weight (per item) | 4 g |
Screw requiring approval | Yes |
Colour | Silver |
Surface | Zinc plated |
Head height | 2.8 mm |
Shape of tip | Tip with hilltop milling cutter |
Suitable machines | Würth BS 14-A Combi, Würth BS 12-A Power |
Internal drive | RW20 |
Catalogue pages as PDF