I have a retaining wall to which I want to bolt fence posts. The fence posts are 100mm square. I can't find any projecting expansion bolts long enough to fix the posts.
just drill through post slightly larger diameter than screw )and slightly countersink the head and drill hole in wall ( correct screw diameter ) .insert and tighten....simples.
If its a stone wall probbaly best with some threaded studding and resin fixings.
Plenty of instalation tips on both on youtube.
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