New guardrail stanchion bases

The boat had new stanchions when I bought her but they have never worked correctly leaving me with slack guardrail lines. 

Once I had tightened it up the main bolt and put on a lock nut (omitted by the yard) the base was stable but however much you tighten up the connection between the stanchion and the base it went slack in no time.

One of the 8 stanchion bases.

Fortunately I found that the stanchion was a standard 25mm so I was able to put this fitting over the top of the original.

Four of the stanchions were fixed on the first visit before near
gale force winds and some rain made it too much like hard work.

Naturally it was not that simple, the one I used for testing I purchased a couple of years ago for the cooker crash guard (see pic in the previous post) and it was a nice snug press fit. This batch were very slightly smaller and needed a serious lump hammer to get the stanchion in, but I ended up with a nice rigid stanchion and tight guardrails.