Threaded Aluminum rod 12.7 mm (1/2″) machined and polished to a satin (brushed) finish. The bottom end of the 1/2″ Aluminum Rod is threaded. All rods are corrosion-resistant. Threads take up 3/4″ of an inch from the end of the rod. May be used with L34C-2A Tapered Adapter for 3/4” Rod Socket.