Gage Assembly Company

Gage Assembly Company manufactures thread plug gages, thread ring gages and plain gages at its plant in Lincolnwood, Illinois, just north of Chicago. It was founded in Chicago in 1953 and is a third generation, privately held company and a member of the National Association of Manufacturers. Its gages are used to check threaded components in aerospace, energy, defense, oil and gas and automotive production, including parts for space and satellite programs.

Products

• Thread plug gages: taperlock, reversible and trilock types
• Thread ring gages, made with root relief or root clearance
• STI (helical coil) thread gages for screw thread inserts
• Set plug gages for checking ring gages
• Plain plug gages and master setting discs
• Standard and custom gages in metric, American inch, straight and tapered pipe, multiple lead, ANPT, DIN, JIS, BSW, NPSM, NPT, UNM and UNS thread forms

Sizes run from 000 to 120 threads per inch, up to 15 1/2 inch diameter and one thread per inch.

Manufacturing

• Gages made from graphitic tool steels, using precision thread grinders and lapping to give a finish at the high side of the gage maker's tolerance
• A proprietary hard chrome finish, in use since 1982, for longer wear
• A one of a kind internal CNC thread grinding machine, bought in 2013, for grinding hardened thread rings from the solid
• CNC machinery and internal and external thread grinding for custom gages built from customer prints and special thread dimensions, such as modified leads, angles and pitch diameters

History

• 1953: founded in Chicago
• 1968: moved to a larger air conditioned plant
• 1978: moved to the present plant in Lincolnwood, with 23,000 square feet devoted to gage manufacturing

Company facts

• Products reach customers worldwide through a network of industrial distributors
• Catalog and quote requests are available on the website
• Address: 3771 W Morse Ave, Lincolnwood, Illinois 60712