Abstract: A series of high security fastener constructions feature rotatable anti-theft shrouds mounted on locking wheel nuts and wheel bolts designed for vehicular wheels. Each construction features (1) a fastener body having a first body end adapted to accommodate a key receiving pattern or member, a second body end having thread pattern extending therefrom, and a shroud receiving portion located between the first and second body ends, (2) a shroud concentrically mounted on the shroud receiving, and (3) a shroud retaining system for retaining the shroud for rotation relative to the fastener body such that the shroud will rotate under an applied torque prior to the fastener rotating when it is installed at a design installation torque.

Abstract: A security key tool for unlocking and locking a manhole security device that secures a manhole access opening. The security key tool includes a longitudinal body portion and a handle portion. A security key at a first end of the longitudinal portion is adapted to engage a security lock on the security device for actuating a locking mechanism on the security device to an unlocked position. A slidable member may be used to help engage the security key to the security lock or to protect the security key. A latch release tool at a second end of the longitudinal portion is adapted to release a latch on the manhole security device for actuating the locking mechanism to a locked position. Optionally, the latch release tool may be disposed on a tool head that also includes a lifting tool adapted to engage and lift the security device away from a manhole frame after the security device is unlocked.

Abstract: A manhole security device for securing a manhole access opening includes a circular barrier adapted to rest on a manhole cover support flange of a manhole frame. Locking members on the barrier are movable between a locked position in which the locking members are adapted to engage the manhole frame and an unlocked position in which the locking members are not adapted to engage the manhole frame. A biasing mechanism on the barrier is adapted to bias each locking member to its locked position. A rotatable locking mechanism on the barrier engages the locking members and has a locking rotational position wherein the locking members are in the locked position and an unlocking rotational position wherein the locking members are in the unlocked position. The locking mechanism has a security lock adapted to receive a security key that applies a rotational torque to the locking mechanism.

Abstract: A locking mechanism for securing the cover of a thin-walled box to the box frame. The locking mechanism includes a clip bracket adapted to engage a wall of the box frame, a lock body adapted to latch to the clip bracket and engage the box cover, a locking member carried by the clip bracket and adapted to clamp the clip bracket to the box wall when the locking member is in a clamping position, and a pivotable actuating lever adapted to actuate the locking member into the clamping position. The locking member and the actuating lever can be implemented as a two-piece system comprising first and second pivoting members. Alternatively, the locking member and the actuating lever can be integrally formed as a one-piece system. The locking mechanism is capable of multiple mounting positions on the box without drilling, and uses a spring-loaded plunger assembly that allows for a quick, keyless, slam installation.

Abstract: A series of high security fastener constructions feature rotatable anti-theft shrouds mounted on locking wheel nuts and wheel bolts designed for vehicular wheels. Each construction features (1) a fastener body having a first body end adapted to accommodate a key receiving pattern or member, a second body end having thread pattern extending therefrom, and a shroud receiving portion located between the first and second body ends, (2) a shroud concentrically mounted on the shroud receiving, and (3) a shroud retaining system for retaining the shroud for rotation relative to the fastener body such that the shroud will rotate under an applied torque prior to the fastener rotating when it is installed at a design installation torque.

Abstract: A key for operating a security fastener having a lock pattern includes a retractable key pattern. The key pattern has an operational extension position in which the key pattern is enabled for substantial engagement with a security fastener having a matching lock pattern, thereby allowing operation of the matching security fastener. The key pattern is also capable of retreating a non-operational retraction position in which the key pattern is not capable of substantial engagement with a security fastener having a non-matching lock pattern, thereby preventing operation of the non-matching security fastener.

Abstract: A locking mechanism for securing the cover of a thin-walled box to the box frame. The locking mechanism includes a two-piece clip bracket having a stationary bracket member and a movable bracket member pivotally mounted to the stationary bracket member. The stationary bracket member is adapted to engage outside and inside surfaces of a wall of the box frame and remain stationary with respect thereto when the stationary bracket member is in an installation position. The movable bracket member is pivotable relative to the stationary bracket member into and out of engagement with the outside surface of the wall when the stationary bracket member is in the installation position. A lock body is adapted to latch to the movable bracket member and engage the cover. A spacer is mounted to the stationary bracket member and adapted to block movement of the movable bracket relative to the stationary bracket member when the movable bracket member is in engagement with the exterior surface of the wall.

Abstract: A locking mechanism for securing the cover of a thin-walled box to the box frame. The locking mechanism includes a clip bracket adapted to engage a wall of the box frame, a lock body adapted to latch to the clip bracket and engage the box cover, a locking member carried by the clip bracket and adapted to clamp the clip bracket to the box wall when the locking member is in a clamping position, and a pivotable actuating lever adapted to actuate the locking member into the clamping position. The locking member and the actuating lever can be implemented as a two-piece system comprising first and second pivoting members. Alternatively, the locking member and the actuating lever can be integrally formed as a one-piece system. The locking mechanism is capable of multiple mounting positions on the box without drilling, and uses a spring-loaded plunger assembly that allows for a quick, keyless, slam installation.