Fastenal split its stock 2:1 in May and the stock has continued to climb higher. Is it worth buying this rather boring business? Over roughly the last 30 years, Fastenal's (FAST 1.27%) share price has risen by a massive 7,300%. For comparison, the S&P 500 index (^GSPC 1.13%) rose "only" 1,300% or so over the same span. What's interesting here is that Fastenal's business is, at its core, not very exciting. And yet this "boring" company has managed to be a huge growth machine. But is it worth buying after its ...