What is an SB lock?

The answer is that an SB (single bitted) lock is a cam lock available in five different lengths that is used in many different applications. I’m going to expand on that definition to give you a fair idea of ​​just how versatile the SB lock really is.

The name SB stands for “single bitted”. This is where the cuts in the key are only on one side of the key. They are very similar to a standard house key, only smaller. They are available in five different sizes from 3/8″ to 1-1/2″ long. Many manufacturers make this type of lock using the standard 54G keyway. Some manufacturers call this a utility lock. They are typically used to secure cabinets, desks, tool boxes, utility cabinets, and even paper towel dispensers found in bathrooms. These padlocks are considered low security.

SB Lock Features:

• Economy Utility Lock on Standard 54G Keyway

• Constructed of die-cast zinc.

• Lock face can be zinc or stainless steel cover in chrome or black

• Available in five lengths

• Can be keyed alike, keyed differently, or master keyed

If these locks are purchased from an authorized service center, they can be opened in batches of one to thousands. They are used in applications where the idea is to keep honest people out. These locks are easily bypassed and should not be used where added security is needed.

SB locks internally use wafers instead of locking pins. These wafers are made of brass and are designed from 0 to 7 that will correspond to the cuts of the key. For example; if the 1-3-5-3 wafers are used, the key is also cut into 1-3-5-3. When both match, the lock will work.

SB locks from different manufacturers can be mixed and used together, as long as they are all in the 54G keyway. Keys from one manufacturer must operate locks from another manufacturer. As a basic type lock, in many cases price is the deciding factor as to where to buy these locks. Many are made in China, where this type of lock has been made for years. The limiting factor in buying from China is quantity. Tens of thousands of SB padlocks must be ordered at a time. Most manufacturers that use this type of lock purchase it from authorized service centers where they can be obtained in any quantity and custom assembled.