What Size Is a Standard Light Bulb Socket? - STKR Concepts
Brass bulb holder B22 E27 light socket
9 Pack E26 E27 Lamp Socket with Shade Ring,Light Bulb Socket Holder Screw in Standard Base Medium Edison Retro Pendant Bulb,Basic Black Replacement Hold Light Cage Cover - Amazon.com
3-pack) Light Bulb Socket Extender E26 Standard Medium Base, 1.5 Inches 3x | eBay
B-15 Unfinished Brass Lamp Holder with 1/8ips Thread