GrabLock is our most innovative and secure lock yet, developed exclusively with leading lock manufacturer, Yale.
GrabLock has three times the locking surface area of a standard, multi-point or shoot-bolt window lock. Formed of a sleek rotating cylinder that quite literally 'grabs' a specially designed 60mm long 'keep' on the window frame, it creates a virtually unbreakable bond between the frame and the sash.
GrabLock is one of the most secure double glazing window locks because of the highly effective bond.
www.everest.co.uk/grablock/