Balax 8-24 STI 2B Thread Plug Gauge, GO.4020 x NOGO.4059, is a precision inspection tool for internal threads. One end is a GO gauge sized to.4020, the other end a NOGO gauge sized to.4059, designed to verify that an internal 8-24 STI 2B thread falls within tolerance. This compact plug gauge supports fast go/no-go checks in manufacturing or quality assurance, helping confirm the thread is within specified limits.
