Seco 5/8" x 11 Female to 1/4" x 20 Female Adapter The Seco 2131-01 Adapter provides a simple and effective solution for converting 5/8" x 11 threaded mounts to 1/4" x 20 connections , enabling compatibility between standard survey equipment and smaller accessories. It is ideal for use with mini prism poles and pin poles , supporting a wide range of mounting configurations in the field. Key Features • Converts 5/8" x 11 female to 1/4" x 20 female thread • Ideal for mini prism poles and pin poles • Enables compatibility between survey gear and smaller accessories • Compact, durable design for field use • Suitable for cameras, scanners, and mounting adapters