0.230" Black Serrated Screen Retainer Spline is a hollow core vinyl component used for repairing, re-screening, or fabricating window, door, and patio screens. This spline features a serrated surface designed to hold screen wire securely within the frame. The material is constructed from hollow core vinyl, providing a flexible solution for screen installation. This bulk roll has a total length of 780 ft and a diameter of 0.23". The black finish is suitable for use with charcoal aluminum or fiberglass screen wire and coordinates with bronze or beige finish frames. This product is supplied in an economical 15 pound bulk roll, which is intended for frequent use in screen fabrication and repair projects. The hollow core design allows for easier handling and insertion into screen channels during the installation process. This spline is compatible with various screen frame types, ensuring a consistent fit for standard window and door screening applications. The serrated texture provides the necessary grip to maintain screen tension within the frame, preventing the mesh from slipping or loosening over time. This bulk roll format is designed for high-volume use, making it a practical choice for professional screen repair services or large-scale residential projects.