Seco 5/8" x 11 Female to 1/4" x 20 Male Adapter The Seco 2131-00 Adapter provides a simple and reliable solution for converting 5/8" x 11 threaded mounts to 1/4" x 20 connections , enabling compatibility between standard survey equipment and smaller accessories such as cameras, scanners, or mounting devices. It is also well suited for use with mini prism poles and pin poles , expanding mounting flexibility in the field. Key Features • Converts 5/8" x 11 female to 1/4" x 20 male thread • Ideal for mini prism poles and cameras, scanners, and mounting adapters • Enables compatibility between survey gear and smaller accessories • Compact, durable design for field use