Always read reviews. This is a true 2x4 dimension. No wood dimension 2x4. See photos. They might still work for what you need, but they're too big to cover with plywood.
π© YSLF Light Fixture Mounting Screws
3 Review
π§ Improved Rok Hardware Fasteners Screws: Introducing ROKSTBFAST for Optimal Functionality
3 Review
π High Precision 7.5mm Slotted Aluminum Piece: Durable and Accurate
3 Review
Armchair IKEA STRANDMON with headrest, 82 x 96 cm, upholstery: textile, color: dark gray
5 Review