will a cantilever snap fit works with a 1.2mm metal sheet (Gauge 18 for US)?

Hello, I need to snap a 3D printed part (sls PA12) through a 1.5mm metal sheet and I'm wondering if a cantilever torsion snap will wor with such a small tickness.
May an annular snap fit will be better?
The snap will be permanent, there is no need to dismontle it once snap, but as 1.2mm is very small, I wonder if the snap will work fine.
Thanks