Radio delete face plate id

[GaryC]

Hey guys, I was checking this post out about the radio delete face plates. I made the decision not to have a radio in my Z and bought a plate for it. The problem I have is I have no idea what the proper screws are for installing without cracking the bosses. The plate in the first post above shows exactly what bosses I have on the one I have for a 69 Camaro with the wood trim. Can anyone help me out? I checked on that one site were you can get correct OEM hardware that most people go to, but the part number I found in the 69 A.I.M. doesn't show up. Would they be fine thread or course? I'm thinking something really slim.