Gage Assembly, a leading manufacturer of precision thread plug and ring gages, serves the aerospace, energy, defense, oil and gas, and automotive industries.

Deltronic manufactures pin gages, thread measuring wires, and gear wire measuring wires in inch and metric sizes.  Also, Deltronic’s Alameda line offers premium thread, ring, plug and pipe gages.

Thread plug gages are fascinating products when you consider the technical details that go into their manufacture and the precision they embody. To some, they look like fancy bolts and are treated accordingly. 

Screw threads are one of those important elements of mechanical design that are often taken for granted but find usage in critically important applications.

External thread inspection can seem confusing and, in some cases, frustrating. There is a wide variety of inspection tools available for external threads.

Working thread plug gages are the fixed limit functional gages used to inspect product threads on a pass/fail basis.