These brackets are designed to allow you to fit a pole in a recess. This bracket is for use where you are using one recess bracket. The bracket holds the pole securely and can be fitted either vertically or horizontally.
The additional image shows the bracket in use with a 20mm pole and a Disc finial (secured a few cm from the end of the pole to act as a ring stop).
This bracket is available to fit either 16mm or 20mm wrought iron poles or 25mm wood poles. You have a choice of coach screws or countersunk slotted screws.