*PLUMBERSSTOCK EXPERT* responded:
Hi! Thank you for asking about our Moen 140392 Chrome Wand Kit. If I understand your question correctly, you are about asking the size of the set screw that connects to the cartridge? It depends on the age of the unit. Prior to 2009, it would be a 7/64 hex. If manufactured after 2009 then it would be a 3/32 hex. If you have other questions, you can contact one of our customer support specialists @ 435-868-4020 between 8:00 AM and 7:00 PM MST and they will be happy to assist you. If you need to order this Moen 140392, simply hit the "Add to Cart" button, enter your zip code to get a shipping cost estimate and proceed to checkout to begin the ordering process. Looking forward to seeing you here again at PlumbersStock.com. Happy shopping!