Fastenal: NO /industries/ IA at all — product+service-first nav. The steel-manned alternative.

Claim: Fastenal — one of the largest US industrial distributors with multi-vertical customers — maintains no /industries/ IA at all. Pure product-first + service-first nav; industries surface only through customer-story content at blueprint.fastenal.com.

Source: https://www.fastenal.com (field research, May 2026); https://blueprint.fastenal.com

Confidence: Verified.

Why this is the strongest counter-example: Fastenal proves that for very large distributors where product breadth and service strength carry the brand, per-vertical pages are a tax, not a benefit. Customers know they need a fastener; they search by fastener, not by industry.

The threshold (per S1 in Research brief: Information architecture for service businesses with multiple verticals (piece 6 of 15)): If product is the lead and one channel (B2B procurement) dominates, vertical-agnostic IA can outperform per-vertical IA. For Boucher & Jones — a smaller, advisory-led distributor where vertical knowledge IS the value — the Fastenal pattern probably doesn't transfer. But the existence proof matters for honesty.