The lock box kit is designed to be bolted on, and is the preferred lock box of choice. The protective cover plate design keeps the lock hidden, protecting locks from being accessible to bolt cutters while allowing easier access when attaching the lock. Packaging Dimensions: 10 1/2" x 7 3/4" x 3. Weight: 11 lbs / 4.98 kg. Bolt on Application (No Welding).