Flush Screw Caps / Panel Spacers - We also offer a range of screw cap supports used for flush mounting of display panels, signage, or other finishing substrates. A special design allows these screw-in caps to give your application a flush mounted clean look. The screw caps are manufactured from the same high-grade brass alloy, then chrome plated in satin silver for a beautiful and long lasting appearance. Screw caps are available in 16mm (5/8"), 19mm (3/4"), and 25mm (1") diameters...