These pivot bars slide into into the bottom (tilting) window and are spring loaded in a track. I found your corner tilt latches, part # 26-351 , fit perfectly! But cannot seem to find a pivot bar. Your part # 26-375 for a Better-Built pivot bar did not seem the same. Mine have a square bar insert on them with a slot in them. Similar in shape to what would slide into your pivot shoe part # 15-045