As of December 2025 Fastenal has a market cap of โน4.280 Trillion. This makes Fastenal the world's 489th 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 Dec 5th, 2025 the market cap of Fastenal was reported to be: