We currently do not supply screws with your blinds. This is becuase the type required varies greatly depending upon the surfaces you are fixing to:
For Timber, use wood screws. For Plaster or Maisonary, use plastic plugs and screws or plasterboard fixings, and for Steel, use self tapping screws with a steel drill bit.

All are available from your hardware store.
 

A recess measurement can be best described as the opening space inside of your window. A recess-fit blind will sit within the opening of your window, without overlapping onto the wall. To take the correct measurements for a recess-fit blind, accurately measure the inside width of your window in three places, writing down the narrowest. This is your recess width. Then measure the inside drop of your window in three places, writing down the shortest. This is your recess drop.

We will reduce your recess sizes by a small amount to ensure the blind fits within the opening accurately without catching. For more information on our resizing policy, visit our working tolerances information page.