Electrical socket with threaded ring slips through any lamp shade that has 1 5/8" fitter hole. This large fitter hole is an industry standard size 1 5/8" wide commonly called SLIP UNO, EURO or NORD fitter. Available with or without turn knob. Directions: Remove threaded ring Slip lamp shade over the electrical socket Screw ring against the lamp shade to secure The small end screws onto a typical lamp pipe/rod with industry standard thread size 1/8 ips, about 3/8" wide. *** FREE SHIPPING - 48 STATES USA - HI & AK ask for quote |