Schlage A Series Standard Duty Commercial Knobs |
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- Meets ANSI A156.2, 1996 Series 4000, Grade 2 specifications
- U.L. Listed for 3-hour fire doors
- Heavy-Duty compression springs
- Available in C keyway and Everest keyways
- Door Range 1-3/8" to 1-7/8"
- Backset 2-3/4" or 2-3/8"
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Schlage D Series Heavy Duty Commercial
Knobs |
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- Meets ANSI A156.2-2003, Series 4000, Grade 1 specifications
- U.L. Listed for 3-hour fire doors
- Heavy-Duty compression springs
- Available in C keyway and Everest keyways
- Door Range 1-3/8" to 2"
- Backset 2-3/4" or 2-3/8"
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