The crutch legs are made from 4 pieces of alum angle fastened with steel pop rivets. These seem strong enough as is, but I will have them spot welded before painting. The advantage of this design is saving the welder time of assembly and me $$$. The key to this pier is the machined plate where the upper legs are fastened. It is a triangular piece with a 6" hole bored in the center and three 6" bosses machined 120* apart.
This is the classic Schaefer design and now has been used in many portable piers.
The mount is being powder coated now, so I will post a shot of the completed mount later. lynn