This sliding screen door handle and latch is used by Bay Mills doors, as well as a variety of other patio door manufacturers of Hat Section doors. It contains a black plastic inside pull with a latch slide button and an outside pull. Mounting holes are 4-1/4 in. on center for the exterior handle and 3-1/2 in. on center for the interior handle. The steel latch slides up and down to engage the keeper(Prime-Line part A 203).