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Glynn-Johnson has been providing the highest quality door control hardware for 75 years. Designed to meet the requirements of hardware specifiers, Glynn-Johnson door control products deliver consistent quality and performance. Known in the industry as "the overhead door holder specialists," Glynn-Johnson uses state-of-the-art technology and manufacturing processes. Glynn-Johnson manufactures a full line of overhead door holders and push/pull latches, which are available in a variety of finishes and configurations to meet the most demanding door control applications.