Bay State GTR-3/8-24UNF-2A Go Thread Ring Gauge is a precision go gauge used to verify external threads on components with 3/8-24 UNF threading, class 2A. This Bay State ring gauge provides a fast, in-process check of thread form and engagement, helping ensure parts meet the 3/8-24 UNF 2A specification before mating with fasteners or fittings. Common applications include manufacturing QA and assembly lines for fasteners, connectors, and machined fittings where 3/8-24 UNF 2A tolerances must be confirmed. The gauge is clearly labeled with the nominal size and class, simplifying identification in your metrology toolkit.
