Max internal 430mmHigh strength container lock & cargo door lock suitable for trucks and containers. High strength metal welding, thickness of steel 7mm resistant to bolt cutters. Special 7mm plate used for container locks. Made from high tensile spring steel, making it extremely difficult to saw through. Laser cut locking holes for accuracy. Specially bent lock claws engineered by suspension and spring makers. Baked and hardened at 1000 degrees Celsius and case hardened. Incredibly strong locking claws – bolt cutter proof. Due to flexible adjustments the 5th lock can be used on any cargo vehicle to shipping containers. 13mm locking shaft, easily replaced – if lost at low cost. Robust heavy duty structure – weighs 4.5 kilograms, extremely rigid. Clever locking system – uses union cylinder bolt sleeve. 2 keys per lock accommodate shipping seal in lock housing or insert large pad lock for extra security. Double locking system can lock most shipping container locks with lock rod distances between 340mm to 420mm. Suitable for all applications and industries – e.g. construction companies, government, container shipping companies, container manufacturers, transporters, freight companies, etc. Excellent value – no other lock compares – guaranteed. Locks rods doors from 230mm to 430mm apart. Electro-plated for extra durability. Excellent investment in theft deterrence, reduce losses & break-ins.