This is an old fashioned ventilating sash lock unfamiliar to many. For a video of its operation click here. Shown in the unlocked position above, this allows the sash to be operated freely without restrictions. This lock is usually installed as a supplementary lock to allow the window to be opened to a certain point but no further. See below for more photos. Fashioned from cast iron with a dark clear-coated finish. Size: 2-1/2" long x 3/16" thick. Provided with 2 screws. |
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