railblaza kayak light pole adapter for 3/4" OD Aluminum pipe

I designed this adapter to mount my Shoreline Marine Kayak LED Stern Light Navigation Light with Strobe, model # SL92001on a length of 3/4" pipe (aluminum, PVC or ABS). Since the length tends to place a lot of stress on the base, i designed the adapter to use a 2" 1/4x20 bolt and nut through the center to increase the strength. The pole is held in with a #8-32 cross bolt. I used a lock nut on it so i didn;t need to crush the adapter or pipe to ensure the nut stayed put. the nylon in the nut