Morris Minor Owners Club

Hi, I need to make a new headlining front board. How thick is the plywood?

Would 4mm be ok? And can I use nuts and bolts to secure the clips or do I need to use rivets?

3/16 inch is ideal, but you'll probably have to make do with the 4mm rubbish
Small bolts for the clips will be fine (use thread lock of some sort), rivets ideal.

Thanks for that