Steel Nails are a higher-tier nail variant in Windrose. They are listed as a separate Major Discovery item from ordinary Nails and appear in the Brethren of the Coast Provisioner inventory as a trade good.
Confirmed Facts
Distinct item. Windrose databases list Steel Nails as a separate entry from Nails, confirming the item exists as its own object
Discovery category. The game's Discoveries panel treats Steel Nails as a Major Discovery the first time a player obtains one
Brethren inventory. The Brethren of the Coast Provisioner sells Steel Nails as part of its trade-good lineup alongside Salt, Coffee Beans, Whiskey, Madeira, and Brandy
What Is Not Confirmed
Publicly available community databases do not document a player-craftable recipe for Steel Nails, an exact recipe-usage list, or a consistent price at the Brethren Provisioner. If you need Steel Nails for a recipe, the reliable path is to push Brethren of the Coast reputation to the tier where Steel Nails become available from their Provisioner, then purchase them for Piastres. Attempting to craft them at a player Workbench is not a documented option.
See Also
Nails — the baseline nail item
Brethren of the Coast — the vendor faction
Faction Reputation — how to unlock higher-tier Provisioner stock