The 4mm Flanged Wheel Lock Nuts are essential components designed to securely fasten wheels in place. This package contains ten high-quality steel lock nuts, each featuring a nylon insert that provides a reliable locking mechanism to prevent loosening during use. The flanged design aids in distributing the load evenly, enhancing stability and performance. Ideal for various applications, these lock nuts ensure that your wheels stay firmly attached, promoting safety and reliability in your projects.