Conforms to EN 12320 CEN4. Solid hardened steel lock body. 12mm hardened boron alloy steel shackles. Rekeyable 6 pin tumbler lock mechanism. Over 260,000 key differs. Key section can be upgraded to Restricted or Protected profile offering over 530,000 key differs. Anti-bump, anti-pick, highly attack resistant. Shackle diameter: 12mm. Shackle clearance: 14mm. Size: 80mm