Hillman Stop Nut 10-32 is designed for secure fastening applications where vibration resistance is essential. These nylon insert stop nuts, commonly known as stop nuts, feature a nylon insert at the top of the nut that threads onto the bolt. This nylon insert prevents the nut from backing off or loosening due to vibrations, ensuring a reliable and durable connection when mechanically joining materials together. I for maintaining tightness in various fastening scenarios, this stop nut combines strength with vibration resistance for enhanced performance. Model Number: 10-32