This insert is intended for people who would like to design or use their own mounting base for the PolarityGear Paper Towel or Toilet Paper Core. Otherwise, you should buy a base to go with your Core.
This stainless insert is custom designed and made for PolarityGear. It has an internal M6 (1mm pitch) thread that matches the threaded stud on our PolarityGear Paper Towel Holder Core and Toilet Paper Holder Core.
You should be able to use any M6 threaded hole to mount PolarityGear as long as it's deep enough. This is a good solution because it offers a finished look on the outside.
If you use a material of 6mm or 0.25 inches thick, you will not need a spacer. Using a thinner material will require a spacer between the core and your base.
These cost about $5 to ship USPS in the USA because they are required to go as a package (They get returned if sent with a stamp). They are shipped separately from other products because they are in different locations.
Depending on the material and thickness, you will likely need a hole that is 8.1-8.2mm in diameter.
We cannot guarantee results because too many factors are at play.