Light pattern U bolts for many different pipe sizes. Nominal pipe size - 15mm(0.5"), 20mm(3/4"), 25mm(1"), 32mm(1.25"), 40mm(1.5"), 50mm(2"), 65mm(2.5"), 80mm(3"), 100mm(4"), 125mm(5"), 150mm(6"), 200mm(8"). Manufactured in steel and electro galvanised with a zinc plating, which gives moderate protection against corrosion. Note : Better corrosion resistance is available in our Hot dip galvanised or stainless varieties. These U-bolts are supplied with nuts. The Thread is rolled which means the diameter of the bar is slightly smaller than the thread.