5-inch Backset Entry Latch. Designed for Standard Entry Combo Set. Requires a 2-1/8-in dia. bore hole on face of door and 1-in dia. cross bore hole on edge of door. Now with these 5-in backset latches, you can keep your vintage door and even make it possible to update with modern styles of handleset. Finished to match standard polished brass knobs and 90° levers.