The Hillman Group 6600 Split Lock Washer, No Size, No Color

Split Lock Washers are the most common style of washer used to prevent nuts and bolts from coming loose. They are used in applications with nut and bolts. The split lock washer provides a more uniform load distribution. The split in the washers grips the material surface to prevent loosening during vibration. The called out size is the inner diameter of the washer.