5-pin, high-security padlock with 50mm hardened steel body and closed 10mm dia hardened boron alloy steel shackle. Electrophoretic finish provides excellent corrosion resistance. 2 keys supplied. Anti-Pick 5-Pin Tumbler Locking Mechanism Hardened Steel Body Round Hardened Boron Steel Shackle Suitable for Indoor & Outdoor Use 1500 Key Differs Rekeyable Electrophoretic Finish Anti-Pick 5-Pin Tumbler Locking Mechanism Hardened Steel Body Round Hardened Boron Steel Shackle Suitable for Indoor & Outdoor Use 1500 Key Differs Rekeyable Electrophoretic Finish