The Hillman #6 Zinc Plated Steel Split Lock Washer is an essential component for secure fastening in applications prone to vibration. Sold in a pack of 48, these washers are crafted from zinc-plated steel, offering corrosion resistance suitable for both indoor and outdoor use. Their split design creates tension when compressed between the fastener head or nut and the surface, effectively preventing loosening over time due to vibrations. Specifically designed for #6 screws, they ensure a precise fit and reliable locking mechanism, enhancing the durability and safety of assemblies in construction, automotive, and machinery settings. These washers are relied upon to maintain tight and secure connections, contributing to the longevity and stability of various projects and applications.