This Precision Lighting 80-2216 4-piece pull-chain light socket with antique brass finish is perfect for all kinds of indoor lamp restorations. With a 6.3-inch chain on the side for easy on/off performance, the medium-based socket is threaded on the top with "Uno" threads, a standard thread size that allows for a shade fitter (sold separately), to be screwed on. The 80-2216 4-piece socket set is equipped with a solid brass shell, cap, ring, and cardboard interior. So, whether you're building or repairing lamps, this on/off pull-chain light socket will provide practical lighting with the option to alter the appearance! Screw set included for easy mounting.