These Angle Panel Connectors are designed to connect free standing dressing screens, fireplace screens or decorative panels. Angle Panel Connectors will work with panel thicknesses from 3/16 inch (4.7 millimeter) to 3/4 inch (19 millimeter) and are fully adjustable in angles up to 300 degrees. Available in several popular finishes and either standard or low profile cap designs. The Angle Panel Connectors require a drilled hole for installation. Supplied with two each 1/4 inch - 20 x 3/4 inch and two each 1/4 inch - 20 x 1-1/4 inch Allen Screws to accommodate varying panel thicknesses. Panel thicknesses less than 3/8 inch (4.5 millimeter) will require cutting the Allen Screw. The Standard Caps can easily be tightened using a Standoff Wrench. The Low Profile Caps are tightened by placing a low profile neoprene or rubber pad in the palm of your hand, applying pressure, and then turning.