here is emtek thumbpiece issue installed over 10 years ago approx 2007
CLENCHE EMTEK 2007
if you have issue with emtek its the worst company you could deal with in a warranty situation no warranty before 2012.
WARRANTY VALIDE AFTER 2012 LIFETIME.
– Can be ordered with any Brass Knob or Lever for the inside trim or different colours at your choice.
– EMTEK Sold as complete set. MORTISE or Latch and Strike Plate
Best company is weiser lock a baldwin family group you cant go wrong.