Why are some nylon cable ties specifications 2.5*100 3.6*200 4.8*300 and others 3*100 4*200 5*300 What is the difference?

The best answer: 2.5*100 3.6*200 4.8*300 (with decimal point) is the actual size, that is, the actual width is 2.5MM, 3.6MM, 4.8MM. And 3*100 4*200 5*300 is the nominal size, just a name, 3, 4, 5 do not represent the actual width, for example: the actual width of 2.0MM and the length of 100MM can be called 3*100, the actual width of 2.5MM The length of 100MM can also be called 3*100