Duratech Tribrach Adapter – Fixed – 5/8″-11 Thread The Duratech Fixed Tribrach Adapter provides a simple, stable solution for mounting prisms, GNSS receivers, and other instruments to a tribrach. Designed for applications where rotation is not required, this adapter ensures a secure, fixed position for consistent and repeatable measurements. Featuring a standard 5/8″-11 thread , it integrates easily with tribrachs and common survey equipment, making it ideal for control work, monitoring, and other precision applications. Key Features • Fixed (non-rotating) design – stable, repeatable instrument positioning • 5/8″-11 thread – compatible with standard survey equipment • Durable construction – built for reliable field use • Simple, dependable mounting solution • Ideal for prisms, GNSS receivers, and monitoring applications