Designed for horizontal and single point lockers with multiple users who are assigned access for short time periods, the Master Lock® 1714 built-in keyed Lock features concealed mounting and a rugged steel case and fits both left-hand and right-hand hinged doors. With automatic locking springbolt, these locks provide slam shut convenience and are ideal for box lockers. Two keys are provided for each lock. Keying options and ADA compliant models available. Master Lock® Built-In Lock, Springbolt, Automatic Door, 2 in Width, Steel, Different Key, Left/Right Hand Locker Hinge