[ferongr]

Pads were the friction material is solely using glue to adhere to the backing plate are generally either very cheap aftermarket replacements or the OEM cheapening out.

[andrewflnr]

What are they supposed to do? Can you weld them on somehow?

[ferongr]

Hooks, holes in the backing plate, stamped/cast dimples, welded wire-mesh for the backing material to adhere to.

[Hatrix]

rivets