lost lower connector screw post

I was replacing a phone screen in accordance with the Reemplazo pantalla de un iPhone 7 tutorial. Apparently, during step 13 and 14 the screw post that the top 1.2mm screw screws into on the main board came loose. When I went to screw the lower connector bracket back in after the screen replacement the top screw would not install. Does anyone know if the iPhone 7 Screw Set contains these posts? It’s hard to tell from the product photo.