طبقه بندی اصلی دکمه ها

آ. با توجه به اندازه دکمه (یعنی اندازه قطر)

That is, we often say 14, 16, 18, 20, 60 and so on! Its conversion formula is: diameter = model 0.635 (mm). If we have a button in our hand, but don't know its size, we can use a caliper to measure its diameter (mm) and divide it by 0.635.

ب روش دیگری برای بیان اندازه دکمه وجود دارد، یعنی L