A classification of washer, lock washers come in a variety of shapes and sizes, each uniquely designed for a specific application. Easily identifiable by their star-shaped body and rigid teeth, or a ring-like shape constructed with bent, spring-like ends, lock washers are used to hold fasteners in place through the application of tension. Providing axial flexibility when attached to the nut side of a fastener, all forms of lock washers are capable of exerting tension while remaining in place when exposed to vibrational forces. Often used for transportation vehicles within the automotive, aviation, aerospace, and marine industries, without the implementation of lock washers, fasteners employed for such jobs face issues in security. When choosing the next set of washers for your project, here are the primary facts you need to consider about lock washers, their common types, and the importance of their individual applications.