These versatile black star knobs are essential accessories for your woodworking projects. The set includes 5 knobs featuring 5/16-18 female threads, perfectly designed for T-track applications. The star-shaped design provides excellent grip and leverage when tightening or loosening, making them ideal for securing featherboards, jigs, and other woodworking fixtures. These clamping knobs are sturdy and reliable, allowing quick adjustments and secure holding power for your workshop needs. The 5/16-18 thread size is compatible with standard T-track bolts, making them a practical choice for various woodworking applications. Whether you're working on custom jigs, installing featherboards, or setting up other workshop fixtures, these black star knobs offer both functionality and convenience. Their durable construction ensures consistent performance through repeated use, while the ergonomic star design allows for comfortable hand tightening without the need for tools.