The henry squire stronglock laminated padlocks are a medium to high security durable padlock with a hardened steel shackle with a covered steel padlock body with anti corrosion finish the 4 pin tumbler lock mechanism gives over 1000 key variations recommended for sheds garages lockups gates greenhouses toolboxes lockers etc keyed alike and masterkeyed available to order now available in customer focussed packaging work home leisure crimestoppers endorsed