The R.L. Stephens Industrial 7 16-20 UNF 2B Threaded Plug Gage Assembly is a precision Go/No-Go gauge used to inspect internal threads sized 16-20 UNF with a 2B tolerance class. This assembly provides a GO limit at.4050 inches and a NO GO limit at.4104 inches, enabling straightforward pass/fail checks for threaded holes. Used in manufacturing and quality control, it verifies that internal threads meet the 16-20 UNF 2B specifications and helps ensure proper fit for mating fasteners.
