![]() ![]() To obtain a new or replacement arrow lock, a property owner or manager must contact their local post office branch. Private use lock conversion Ĭonversion locks are available that match the mechanism and dimensions of USPS arrow locks, but are keyed for private use. Similar to knox boxes, key keepers secured with an arrow lock allow postal carriers to access the lobby of unstaffed multifamily buildings to deliver mail. In addition to actual mail delivery receptacles, arrow locks can also be found in key keepers, which are small lock boxes containing another key to a secured area where the mail receptacles are located. Schematic for a USPS Arrow Lock Use in key keepers An apartment building key keeper with the door open, showing a USPS arrow lock ![]() USPS approved parcel lockers, cluster box units, and apartment mailbox panels will be manufactured with the hole and studs to accommodate an arrow lock. ![]() A 7⁄ 8 in (22 mm) hole in the mounting surface is necessary to accommodate the keyhole, which protrudes above the surface of the lock. This action may be used to release a door (as in the case of a collection or parcel box) or to press/release a switch (as in the case of an electronic door release).Īrrow locks have four mounting holes, which are evenly spaced at the corners, providing for secure attachment to four 10-32 threaded studs with metal nuts. When the user turns the key, a metal bar that normally protrudes from one side is moved through the lock to the other side. Arrow locks are also referred to as "Master Access Locks" Dimensions and mounting Īn arrow lock is metal and rectangular, measuring 2.005 in × 3.566 in × 0.620 in (50.9 mm × 90.6 mm × 15.7 mm) with a keyhole in the center. Arrow locks are unlocked through the use of a corresponding arrow key. An arrow lock is a lock with standard dimensions used by the United States Postal Service for mail carriers to access collection boxes, outdoor parcel lockers, cluster box units, and apartment mailbox panels. ![]()
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