Keep your fastenings secure and attractive in any project with Hard-To-Find Fastener's split lock washers. These locking washers prevent fasteners from loosening due to vibration or torque. The black chrome plating on these hardware washers adds a layer of protection against rust and oxidation, suitable for outdoor or marine environments. Additionally, the dark, glossy finish of the steel washers provides a professional, high-end look, often preferred in automotive, motorcycle, and custom hardware projects. These lock washers can be used in home improvement projects, construction, automotive, electronics, and furniture assembly—anywhere a secure, stable fastening is needed. Washers must be properly torqued to function effectively. Over-tightening or under-tightening can reduce their locking ability or damage the washer.