The Castmaster stitching pins that we use for our metal stitching repairs are manufactured by Lock-N-Stitch in the United States. They feature the patented Spiralhook thread, which makes them the best choice to carry out very strong, permanent metal stitching repairs.
This animation shows the working principle of the Spiralhook thread and explains why, unlike other products, these stitching pins do not create a radial spreading force during tightening.
These stitching pins are available in various diameters and lengths and are suitable to repair cast iron, steel, aluminium and bronze parts that are from 4 to 200 mm (1/6 to 8 inches) thick.
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— One Comment —
This is interesting to know more about stitching pins and the importance of using the best materials.