Glastonbury Southern Gage

Southern Gage was founded in 1955 in Erin, TN as an outgrowth of the Woodward Company. It grew to be a full-service gage manufacturer with emphasis on thread gaging. During the 1980’s Southern Gage became known for its educational and training programs on thread form and gaging. In 1995, the owner of Glastonbury Gage purchased Southern Gage from ITW. In March 1999, the GSG Erin operations occupied its new 42,000 square foot state of the art manufacturing facility. It includes 5,000 square feet of laboratory space, temperature and humidity control for the entire plant, CNC thread grinding equipment and a streamlined process workflow. GSG is a major manufacturer of all types of thread gages from UNC, UNF plugs and rings to API gages, plain plugs and rings, AGD Snap gages, thread rolling comparators, GSG Zero spindles, PD concentricity and runout gages and GEO Check, Quick Check and micrometer surveillance masters.