For use in mounting a revolving truck assembly to a shaft without a threaded end plug. Unit is tapped 1-1/4" NPT and is secured to the shaft using three 1/4 in. stainless set screws or by tapping the shaft to accept bolts.
For Optimum Mounting it is recommended that all trucks be bolted to the poles by drilling and tapping mounting holes. However, pole top sizes through 3-1/2 in. are supplied with 1/4 in.-20NC set screws. Adapters for poles with a top diameter larger than 3-1/2 in. are clearance drilled for use with supplied stainless steel flathead bolts.