---
schema_version: "secwatch.filing_event.v1"
accession: "0000815556-21-000037"
form_type: "8-K"
ticker: "FAST"
cik: "0000815556"
company_name: "FASTENAL CO"
filed_at: "2021-10-12T23:59:59+00:00"
generated_at: "2026-06-28T21:39:42.199489+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Fastenal Q3 net sales up 10% to $1.55B; EPS $0.42; lowers Onsite and FMI guidance

## Summary
- Q3 net sales $1,554.2M, up 10.0% YoY; diluted EPS $0.42 vs $0.38 (+9.7%).
- Gross margin improved 100bps to 46.3% due to overhead leverage and product mix.
- Fastener daily sales rose 20.2% YoY; safety product daily sales declined 2.9%.
- Onsite signings guidance lowered to 285-325 from 300-350; FMI MEU signings guided to 20,500-22,000 from 23,000-25,000.
- Digital Footprint (FMI + e-commerce) accounted for 43.7% of Q3 sales; e-commerce daily sales up 43.4%.

## SEC filing metadata
- accession: 0000815556-21-000037
- form_type: 8-K
- ticker: FAST
- cik: 0000815556
- company_name: FASTENAL CO
- filed_at: 2021-10-12T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/815556/000081555621000037/0000815556-21-000037-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/815556/000081555621000037/fast-20211012.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000815556-21-000037
- JSON: https://secwatch.observer/filing/0000815556-21-000037.json
- Plain text: https://secwatch.observer/filing/0000815556-21-000037.txt

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