The 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 1 000 key variations. Recommended for sheds garages lockups gates greenhouses toolboxes lockers etc. Keyed alike and masterkeyed available to order. CRIMESTOPPERS endorsed.Size across case: 38 mm. Shackle clearance Vertical: 17 mm (hardened mild steel).Type: 35.Keyed-alike and master keyed available.PTDHSQ35