The Lowe 124 full mortise entrance lock is available in 2-1/2”, 2-3/4”, 3-3/4”, 5” or 6” backsets. Typically used as an entrance lock, the 124 features a 1” reinforced deadbolt, full egress functionality, and can be used anywhere key controlled access is required. The lock can be configured at the factory to be used with knobs, levers, thumb latches or any combination thereof. It is supplied with a strike plate and stamped metal dust box, and the faceplate has an adjustable bevel. Center dimension between the handle and thumb turn is 2-7/16”. The 124 is ANSI Grade 1, and is UL listed with a 3 hour fire rating.