b, h1 are mininum dimensions and apply for a sheet thickness of 10mm. Dimensions different from those listed in the table are to be specifically indicated when ordering; in such cases, the designation of a U bolt type A with inside diameter a = 82mm and for example, h1 = 130mm and b = 55 mm reads: 128 A82x130x55. The fitted nuts are DIN 555 class 5, washers DIN 126, washers for channels & I-beams according to DIN 434 and 435.
