I'm apologize for any issues you are experiencing with your bow tie. I've updated the description of the object to include the exact dimensions of the button that the tie will fit (10.16mm x 2.5mm). In addition, I've widened the thread slot to accommodate larger thread sizes. Again, I apologize for any inconvenience you have experienced. If you are having trouble fitting the thread through the thread slot, you can use sandpaper to widen it. Newly purchased products will not require this, however, because the thread slot is now much wider.