I've reached here via reading this thread **LINK** and rather than resurrect an old thread thought it better to start a new one.
My question is this. I have a 1/4 steel dome rivet and looking up the table at Sapphire, it tells me that the setting allowance is just over 9mm. But the depth of the setting hole in my snap is 15mm. Have I been sent a duff snap ?
TIA