Introducing our .300 Flat Spline, the perfect choice for securely installing screen mesh in frames with shallow grooves. This durable, black vinyl flat spline is designed to hold aluminum and fiberglass screens firmly in place, ensuring long-lasting performance for porches, patios, and other outdoor screen enclosures. Lightweight and easy to handle, the .300 Flat Spline provides a snug fit to keep your screens secure, whether you're working on a DIY project or a professional installation. Ideal for maintaining strong, durable screens in high-traffic outdoor areas!