4in Lamp Shade Fitter Holder
The fitter is the portion of the shade holder through which the glass lampshade actually passes and makes physical contact with the lamp. Shade holders come in different fitter sizes and so do glass lampshades. The idea, logically, is to match the same fitter size for both the shade holder and shade. Grand Brass Lamp Parts, LLC. has a large selection of Lamp Shade Holders for shades with with 4 Inch Fitters. These holders have three screws and work with shades with a neck.