---
schema_version: "secwatch.filing_event.v1"
accession: "0000815556-25-000079"
form_type: "8-K"
ticker: "FAST"
cik: "0000815556"
company_name: "FASTENAL CO"
filed_at: "2025-04-11T23:59:59+00:00"
generated_at: "2026-05-23T16:42:37.815333+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Fastenal Q1 net sales +3.4% to $1,959M; EPS flat at $0.52; gross margin 45.1%

## Summary
- Daily sales grew 5.0% (one less selling day); fastener DSR +1.1% after 7 quarters of decline.
- Gross margin fell 40 bps to 45.1% on customer/product mix and higher fleet/transport costs.
- Operating income margin 20.1% vs 20.6% a year ago; SG&A grew 3.9%.
- Inventory up 11.9% YoY to $1,674M due to growth support and anticipated tariff impact.
- Capex guidance for 2025 raised to $265-$285M; FMI signing target maintained at 28k-30k MEUs.

## SEC filing metadata
- accession: 0000815556-25-000079
- form_type: 8-K
- ticker: FAST
- cik: 0000815556
- company_name: FASTENAL CO
- filed_at: 2025-04-11T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/815556/000081555625000079/0000815556-25-000079-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/815556/000081555625000079/fast-20250411.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000815556-25-000079
- JSON: https://secwatch.observer/filing/0000815556-25-000079.json
- Plain text: https://secwatch.observer/filing/0000815556-25-000079.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.