Kason - 0058LO5021 Latch. LATCH NO LOCK HAS HOLE FOR INSIDE RELEASE MTG HOLE CENTERS 3-1/16" LENGTHWISE MTG HOLE CENTERS 2-1/16" TOP TO BOTTOM 11" OVERALL OD LATCH FOR STRIKE USE # 261897, # 261898, # 263303 ( STRIKES HAVE DIFFERENT OFFSETS ) FOR INSIDE SAFETY RELEASE USE # 221545 KASON SERIES 58, 77