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
Enhance Safety and Style with Design House 182014 Standard Handrail
3 Review
π Enhanced Aluminum Profile Connector Bracket Accessories
3 Review
π§ Improved Rok Hardware Fasteners Screws: Introducing ROKSTBFAST for Optimal Functionality
3 Review