Hold down device / screws
The NDS-529B brass screws hold down your bronze Mini Channel grates. 2 screws required per bronze grate. 4 screws required per plastic grate.
If you are installing the NDS® Mini Channel plastic decorative Wave or Botanical grates, you will need NDS-846 screws,
If installing NDS® plastic slotted, stainless steel perforated or aluminum grates, you will need the NDS-529 screws.
