The EXT RET RING 5/16 from DOUBLE HH MANUFACTURING is a pack of six external retaining rings designed for secure fastening in various applications. With a diameter of 5/16 inches, these rings are crafted from durable materials to ensure long-lasting performance. They are ideal for use in automotive, machinery, and construction settings, providing reliable retention for shafts and components. These rings comply with industry standards, making them a trusted choice for professionals. The bulk packaging offers convenience and cost-effectiveness, ensuring you have the right amount of retaining rings for your projects.