Thread plug gauge go/nogo UNC/UNF – S-TF thread gauges, thread plug gauges, unc, unf High quality Tolerance 2B Hardness 58HRC +/-2HRC On request: Different tolerance (3B…) Special version Lowered or increased version Different pitch Different thread (Helicoil, UNJ..) Personalized set Certificate ILAC MRA PRODUCT INFO“Thread plug gauge go/nogo UNC/UNF – S-TF”