Patio door glazing bead

Thanks for reaching out to us. I'm afraid we can't use this photo to ID your glazing bead. Can you remove an undamaged sample and show us a clear photo of the end profile? That should help us narrow down some options. 

Great, thank you! This resembles the 55-164, 55-192, and 55-197. Take a look at the specifications below and see if one of them matches up with what you're searching for. 

Profile diagram of 55-164

Profile view of 55-192

Dimensions for 55-197