The #4 Lock Washers (5-Pack) are essential fastening components designed to prevent nuts and screws from loosening under vibration and movement. Featuring a split (spring) design, these washers apply constant tension, helping maintain a secure connection in demanding applications. Made from durable steel, #4 lock washers are ideal for use with #4 screws in RC vehicles, electronics, and general hobby projects. They are commonly used in assemblies where vibration resistance is critical, such as motors, chassis components, and structural mounts. Whether you're performing maintenance or building from scratch, these lock washers provide an extra layer of security for your fasteners. Key Features: Size: #4 Type: Split lock washer Quantity: 5 washers per pack Material: Durable steel Function: Prevents loosening from vibration Benefits: Helps keep fasteners tight under vibration Provides added security to screw and nut assemblies Durable construction for repeated use Easy to install with standard hardware Ideal for RC, electronics, and general hobby use Keep your assemblies secure with #4 Lock Washers—simple, effective, and built to hold tight.
