Full set of mounts clearly showing threads. The four bottom, or stock, mounts,
are in the back. On the left front are the tenor top mounts, and on the right
are the bass top mounts.
Set of three ring caps clearly showing threads. Bass in back, two tenors in
front. 
Two views of a set of bushes clearly showing threads. The bass is in the back.
The view on left clearly shows the threads; they are essential for a secure,
airtight fit.
Set of hemp stops clearly showing threads. These are made of delrin for the
extra strength. They are not necessary for pipes that do not have tuning slides.