XCBPTA2 Transition Adapter By Cast Lighting (Min Quantity 2)The Cast Lighting XCBPTA2 is a Brass Transition Adapter Description This transition adapter is 1 2" FPT x 1 2" male post, made of solid bronze. Use Example: To use a threaded stem or a threaded post fixture with our Set n Stakea mounting accessories, use the XCBPTA2 California Residents: Prop 65 regulations Product Files Click for Product Information