AllPoints Foodservice Parts & Supplies 1831182 Lock Washers are essential hardware components designed to enhance the stability and reliability of your assemblies. This pack includes 10 lock washers, each measuring 5/16 inches in diameter. Crafted from durable materials, these lock washers provide superior grip and prevent loosening due to vibration or movement. Ideal for various applications, they ensure a secure fit for bolts and screws, making them a valuable addition to your toolkit.