Lead has nearly no tensile strength. It was used to fix the clamps/braces to keep stones together in the stone masonry, the clamps themselves were steel alrigh

Lead has nearly no tensile strength. It was used to fix the clamps/braces to keep stones together in the stone masonry, the clamps themselves were steel alright. https://artofmaking.ac.uk/explore/tools/18/Metal-clamp/pin https://artofmaking.ac.uk/explore/tools/18/Metal-clamp/pin