Abstract: This invention in one aspect relates to a security screen assembly 30 including a frame assembly including a plurality of frame members 32 which are assembled in such a manner that they define an opening which is closed by a sheet of a mesh like material a sheet 14. The assembly 30 further includes two opposing gripping members adapted to grip an edge portion of the sheet of mesh like material 14 and wherein at least one of the frame members 32 includes a channel shaped recess which is adapted to receive the two opposing gripping members, the channel shaped recess having an opening which does not permit the two opposing gripping members to pass therethrough.