Henry squire stronghold bullit is a purpose built padlock designed for roller shutters and containers made from solid steel for maximum security conforms to bs en12320 standards cen3 and has a 10 year guarantee with a solid hardened steel lock body with electrophoretic finish for excellent corrosion resistance shackle opening on the same side of lock as key entry for ease of use with shutters and containers hardened alloy steel shackle 10mm in diameter rotates for anti saw protection protective