The Right Degree of Protection. The patented Degree system from SARGENT provides the right level of security for each opening in your facility with three levels of ANSI/BHMA Grade 1 protection, from patented keyway to UL437 certified. A common key for all three levels of security enhances key control and simplifies administrative procedures. Key blanks are controlled through authorized distribution and geographical protection is available. Available for mortise, rim, component and Large Format Interchangeable Core (LFIC) cylinders, SARGENT offers the right Degree of protection for every door in your facility.