Screws for mass air flow

Does anyone know where I can find screws or bolts for the mass air flow tubing. Can’t find anywhere specific for this place in engine. My mechanic noticed they were missing last time I took the car in. Car is stock. I’ve owned it since 2/89. Please see pictures attached. 3rd picture shows where screws are missing up close. I’ve spoken to Dennis Kirban & he doesn’t have screws/bolts specifically for that. Also does that anyone know what size screws would be.