Industrial Pennoyer-Dodge 2-5/8-16 UN-3B Go Thread Plug Inspection Gauge (pd 2.5844) is a GO thread gauge used to inspect internal threads of 2-5/8-16 UN-3B. It verifies that a threaded hole meets the basic size and depth requirements, enabling quick, nondestructive checks in quality control and maintenance work. The gauge is identified by the pd 2.5844 model number and carries the Pennoyer-Dodge branding for reliable threading inspection in industrial settings.
