SPLIT LOCKWASH Z 1/4 Engineered to provide more uniform load distribution, split lock washers are great for any indoor/outdoor project. Ideal for situations where potential loosening from corrosion or vibration is a concern, split lock washers are used to prevent nuts and bolts from coming loose. These fasteners contain split ends that help “lock” into the mating material, thus providing a locking feature when tightened beneath a nut. The zinc finish provides moderate corrosion resistance. Use with treated lumber in applications with like nuts and bolts of similar diameter. * Brand Name: Hillman Diameter: 1/4 in. Finish: Zinc-Plated Material: Steel Product Type: Split Lock Washer Number in Package: 100 pk Packaging Type: Boxed Unit of Measurement: Metric C-Pak Hardened