Full-thread screw with countersunk head for fastening metal fittings or cabinet connectors in timber or engineered-wood panels
Ideal power transmission due to RW recess
- More power due to a larger contact surface at the bit
- More stability, one-handed working and 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
Mechanically interlocking connection to metal fittings or in wood products with high bulk density
- For connecting fittings with full-thread steel screws
- Perfect fit of 90° head in fittings with metal countersinks
- Tight joint without countersinking as the screw head does not have any milling elements
- The head is inserted by pressing
No over-tightening with high feed performance
- Higher power transmission in compact and hard woods due to reinforced, asymmetrical flank geometry of the coarse thread
- Better anchorage due to higher thread flanks
Smooth thread start ensures optimised piercing and biting of the screw
- Minimal splitting due to material displacement by the dome-shaped milling elements in the tip
- Minimal friction when screwing in the thread reduces the amount of force required
Notice
- We recommend using the Würth software or corresponding design aids for planning and designing your installation. Design of ASSY screws can be carried out in the Würth timber construction software from a screw dia. of 5 mm
- Do not use the screw in applications with direct exposure to the weather or in wet 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 the atmosphere contains chlorine, use HCR stainless steel screws
- ASSY 4, ASSYplus 4 and ASSYplus 4 VG chipboard screws are optimised for use in timber and engineered wood. For applications in plastic anchors where the load 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
Approved as per ETA-11/0190
The requirements of the European Technical Approval (ETA) must be observed
