Look at our
39-286 handle and
39-154 cover. The
39-154 is a newer version with exposed screw holes. You will need to purchase a flat head #8 screw similar to the
33-016P, but I believe you will need the screw to be 1-1/4" long. As for the lock, yours is an older style. Take a look at the
38-056 and
38-057 locks along with the
38-135 keeper. See if you can use these on your window.