• Fastenal average pre-tax profit margin for 2023 was 20.61%, a 0.15% decline from 2022.
• Fastenal average pre-tax profit margin for 2022 was 20.58%, a 2.54% increase from 2021.
• Fastenal average pre-tax profit margin for 2021 was 20.07%, a 1.21% increase from 2020.

Pre-tax profit margin can be defined as earnings before taxes as a portion of total revenue.