EMPIRE CYLINDRICAL PASSAGE BALL KNOBSET
Grade 2 heavy-duty cylindrical ball knobPassage function for interior doorsLatch is 1-1/8" x 2-1/4", square corner -faceplate, 1" housing diameter & 1/2" throwSquare corner 1-1/4" x 4-7/8" ANSI ASA strikeKnob has 3" rose diameterANSI A156.2 compliant - UL/ULC listed for -3 hour fire door - satin stainless steel finish