Window Products Incorporating CYL4® one key technology, ASSA ABLOY window locks give you the added convenience of being able to operate all your door and window locks with a single 5 pin C4 key. Window HandlesWith contemporary styling and unrivalled functionality Yale's window fasteners cannot be beaten. With a constantly evolving range of styles and finishes our fasteners will complement any home. Window LocksWith a wide range of functionality and finishes, the ASSA ABLOY range of deadlocking windowbolts will provide you with peace of mind. With locks for most functions you can rest assured that your ho... Window OperatorsWindow operators provide easy use of out-of-reach windows allowing you to control ventilation in your home. With manual and electric operators available we can provide the solutions to your window... Window StaysASSA ABLOY Window Stays have a proven track record. With our patented friction bearing and unique "pull in" features, you will have control of the opening angles of your homes windows.