You are protected by Paypal (which is notorious for their "the customer is always right" mantra). Even if they were counterfeits you would win the dispute claim.
Use these a lot. They have proprietary innovations like serrated pitches that require no predrilling, combination heads (robertson and philips), and heat treated screws that are strip resistant.
They are made in the US or Germany.
http://www.spax.us/
Edit; I buy mine at Home Depot. They have...