A universal electronics lock and lock kit has an inner cylinder and an outer cylinder. The outer cylinder slidingly fits over the inner cylinder. The outer cylinder is equipped with a lock cylinder that has an movable latch. When the latch is in one position, it clears an inwardly-directed ridge defined within the inner cylinder. The lock is then in the “unlocked” position. When the latch is in a second position when rotated by a turning of a key, the latch is disposed behind a portion of the ridge and the lock is in the “locked” position. The universal electronics lock of the present invention allows rotation of the cylinders about a fastener, thus making the lock difficult to cut or saw through. In the lock kit, a plurality of fasteners and spacers are provided to adjust for use with electronics from different manufacturers.