There are likely missing screws for mounting, the screws pictured is what you'll receive. There are 48 hinges total. One of which is missing the plastic grommet. Only 1 open bag of screws included so you may need to supply more.

Ravinte 45 Pack of cabinet hinges offers a reliable solution for kitchen cabinet doors. Made of durable stainless steel, these 1/2 inch overlay soft close hinges feature a sleek silver color and a soft closing mechanism for a smooth and quiet operation. With 22 pairs included in the pack, these hinges are designed for easy installation and provide a sturdy connection for your cabinet doors. Perfect for modern kitchen renovations, these Ravinte hinges are a practical and stylish choice for your home improvement project.