Master Lock 4 Pin Cylinder Pad Lockno. 3 K Unit PK. 4 Cylinder Pad-Lock Private Key 3DLF is Master Lock's low profile padlock for back packs small notebooks and everyday lost keys. This Master Lock Padlock is high security a good backup or personal key and ideal for lock boxes safes and filing cabinets. This padlock is sure to provide peace of mind. Whether the locks are shared or if a single lock is needed the number one choice for padlock security is the Master Lock 4-Pin Cylinder Pad Lock 3DLF . This Master Lock Tumbler Padlock is sure to provide you with the confidence and assurance you need for all of your personal and professional security needs. Specifications for Master Lock 4 Pin Cylinder Pad Lockno. 3 K 3DLF: Manufacturer: Master Lock Fabric/Material: Hardened Steel Laminated Steel Weight: 0.49 lb Package Contents: Master Lock 4 Pin Cylinder Pad Lockno. 3 K 3DLF / 300073-116 The Master Lock 4 Pin Cylinder Pad Lockno. 3 K 470-3DLF is a quality addition to the Master Lock lineup. For more great deals on Locks by Master Lock please browse our Master Lock Locks page. Master Lock 4 Pin Cylinder Pad Lockno. 3 K 3DLF Unit PK