FLEXIBLE DESIGN: Hinged rod connector design accommodates more than just 90 degree angles for an adaptable option. Design for bay window, corner window, extra long window. SIZE: The screw size is 0.24 inches, 6.3 millimeter, 1/4 nearest fraction. It is #14 standard american screw size. See the size image for closer look. The elbow size fits up to 1 1/8 inch curtain rod. PREMUIM MATERIAL: This elbow connector is made of high quality metal. Integrated screws help keep curtain rods in place for a secure fit. EASY INSTALLATION: Swap out finials for an instant update. This adaptable corner curtain rod connector fits in with your existing hardware to master any angle you need covered. VARIETY COLOR OPTIONS: Elbow connectors come with 5 colors, Matte Black/Glossy White/Oil-rubbed Bronze(ORB)/Brushed Stainless Steel/ Antique Brass. Consider all the angles with the Corner Connector from Urbanest. This adaptable corner curtain rod connector has a hinged design, letting it fit in with your existing hardware to master any angle you need covered. Whether it's corner windows or a creative doorway solution, this connector is here to help you get around it.