SmallRig Rod Connector with M12 Thread for 15mm Aluminum Alloy Rods (Pack of 2) – 900 allows you to connect any of SmallRig threaded 15mm rods together. All of our rods are threaded on 2 sides to allow extension via this Rod Connector 2 with 12mm*1.75H7 thread. Easy Connection. just simply screw it to one rod firstly, then please connect the second rod and it’s done.