The design of the 500 series van lock and hasp makes it almost impervious to common forms of attack. The shackle-less lock is enclosed within the walls of the hasp offering virtually no points of effective attack. Padlock: Chrome plated hardened steel body - Extra strength and protection from corrosion. Shrouded steel shackle - MAXIMUM protection against hacksaw and cropping attacks. 6 pin cylinder - Extra protection against picking. Corrosion resistant mechanism - Reliable in potentially harsh environments. Hasp: Zinc plated heavy duty steel construction - Extra strength and protection against corrosion. Supplied complete fixing bolts for security and convenience. Two keys are supplied with each lock.