Not really.

Metal was very expensive and used sparingly and only where absolutely needed. Nails were all hand forged and expensive as well so lots of other joinery was used instead. In most castles the only metal/locking door was for the pantry where spices were stored since they were small and easy to steal and resell.

Metal plates weren’t a thing until well after industrialization and frankly aren’t much use vs cannons, which is what made your standard fortified castles obsolete.