R.L. Stephens 10-24 UNC 2B Go No Go Thread Plug Gauge

R.L. Stephens 10-24 UNC 2B Go No-Go Thread Plug Gauge Assembly is a precision inspection tool for validating internal threads machined to the 10-24 UNC standard with a 2B tolerance class. The gauge provides distinct GO and NOGO limits, with a GO size of.1629 inches and a NOGO size of.1672 inches, enabling quick, binary acceptance checks of threaded holes. Designed for use in manufacturing and quality-control environments, this plug gauge helps ensure that female threads meet the 10-24 UNC 2B specification before assembly with mating fasteners. The 2B designation denotes the internal thread tolerance class, defining the allowable deviation for the threaded hole profile and depth. This assembly format supports repeatable gauging in bench or shop-floor setups where precise thread verification is essential for reliable assembly and functional fit. Used in conjunction with other inspection tools in a metrology workflow, this gauge supports routine checks of hole size to the 10-24 UNC 2B standard. The GO and NOGO limits provide clear go/no-go decision points during setup and inspection.