As of March 2026 Fastenal has a market cap of โน4.882 Trillion. This makes Fastenal the world's 443th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Mar 10th, 2026 the market cap of Fastenal was reported to be: