When a supplier recommends a specific part for an application, and the buying firm relies on this expertise, an implied warranty for fitness for a particular purpose is established. This means the supplier is responsible for ensuring the part is fit for the intended use. Even if the explicit requirements were not detailed, the supplier's recommendation implies a guarantee of suitability. If the fasteners fail, the supplier can be held accountable under this implied warranty. References: Uniform Commercial Code (UCC) Article 2 on Sales, warranty sections, and relevant case law on implied warranties.