Y117D/40/121 - Yale Disc Padlock 40mm Yale Disc Padlock Range Features - Double ball locking - Reversible disc tumbler key - Square profile - Yale round key bow - Operating environment: indoor, mild outdoor (weatherproof) Material & Security Body material: Solid Brass Shackle material: Hardened Steel Padlock Size: 40mm No. of keys: 3 Security grading: 4 Corrosion rating: 3 Y210/38/127 - Yale Silver Series Outdoor Satin Steel Padlock (Boron Shackle) 38mm with Multi-pack Y117D/40/150 - Yale Disc Padlock 40mm Y117D/50/127 - Yale Disc Padlock 50mm