Discover U.S. Screen's wholesale collection of premium quality flat spline designed for securely holding screen mesh within extruded pool screen enclosures and patio lanai framing. Available in both vinyl and foam materials, our splines come in .310 and .315 diameters, providing versatile options to suit various project needs. Engineered with durability and precision in mind, our flat splines offer exceptional strength and flexibility, ensuring a snug and long-lasting fit for screen installations. Whether you're a contractor, builder, or reseller, our wholesale flat spline solutions promise reliability and efficiency, empowering you to deliver top-notch results for your clients' pool and patio spaces. Explore our selection today and elevate your screening projects with U.S. Screen's premium quality splines.