ASSY^® 4 HCR 1.4529 CS swimming pool screw Stainless steel highly corrosion resistant 1.4529 plain partial thread countersunk head

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

Form-fitting connection to metal fittings or in wooden products with high bulk density

• 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 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

Suitable for extremely chlorine-laden areas, with simultaneous SO₂-, exposure to chlorine gas and high temperatures

• Made of high corrosion-resistant, austenitic, non-magnetic and non-rusting stainless steel, class HCR (high corrosion resistant) 1.4529


• Can be used in outdoor areas exposed to the elements, areas with spray water or foggy areas or industrial atmosphere with extreme chlorides exposure at simultaneous elevated concentrations of SO₂ or chlorine gas and high temperature and with significant concentration of pollutants in the absence of cleaning, e.g. swimming pool or tunnel construction


• Corrosion resistance class KWK V

ETA-11/0190 approved

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