● Hole Thread Size: M8, M10, M12, M14, M16, M18, M20. This ball is a thread hole drilled on a solid stainless steel ball. ● Ball Size: 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 22 mm, 25 mm, 28 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 60 mm.
eBay