VELUX ZOZ 012K Key Operated Security Lock for Centre Pivot Windows VELUX Sale! from £55.00 £55.00 (inc VAT) £45.83 (ex VAT) Qty. Add to Basket This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Description: The VELUX security lock ZOZ 012K is a key operated window lock. For use with VELUX Centre-Pivot Windows - GGL & GGU.