A padlock is the manual locking system, used for securing your house. In previous times, the locksmith suggests using padlocks for securing the primary door of the house. Padlocks are available in different designs and patterns. Keyed padlock and combination padlocks are commonly used locks these days. Both such locks are similar by looks but different by function. Locksmith Houston service provider suggests using combination locks over keyed padlocks. A combination padlock lock contains a numeric pad on the body, by matching the unique code sequence you can unlock the lock. It is a different concept and convenient to use. You didn’t require a mechanical key for unlocking the combination padlock. The working of the padlock is based on a spring system. In case if you know more about padlocks you can ask locksmiths. To get padlocks, you can get them from the nearest hardware store.