Sargent 7 Line Locks

The Sargent 7 Line Cylindrical lever lock is a key-in-lever lock designed for standard-duty commercial exterior and interior doors in offices, commercial interiors, medical clinics, government facilities, and public buildings. Exceeds ANSI/BHMA A156.2 Standards for cycling and durability.

The Sargent 7 Line is a cylindrical lock line covering commercial functions with conventional and interchangeable core keying. Shop the 7 Line in passage, privacy, office, entrance, classroom and storeroom functions across the standard BHMA finish range. In stock at Commercial Door Hardware and shipping the same day.

What Mixing Lock Lines Actually Costs

A building that has been maintained for twenty years rarely has one lock line. It has whatever was specified originally, plus whatever was available during three renovations, plus whatever a contractor had on the van.

The cost of that shows up in places nobody budgets for:

The spares problem is the one that bites. If a building runs three cylindrical lines, the maintenance stockroom needs latches, strikes, spindles and trim for all three — or it doesn't, and a failed lock waits for an order while the door stays unsecured.

This is why the 7 Line question is usually not "is this the best line available" but "is this the line this building already uses." If it is, continuing with it is almost always the right answer, even where a different line might look marginally better on a datasheet. Consistency across a building is worth more than a specification improvement on one opening.

Where a building genuinely has no standard, picking one and converting openings as they fail is the cheapest route to getting one. Confirm the grade and cycle rating for your configuration on the product page.

Function Guide

Free egress from inside applies on every function, which is a code requirement rather than a feature. Confirm the exact function designations against Sargent's documentation.

Keying Options

Confirm which interchangeable core systems your configuration supports. Cylinders, cores and key blanks are available in our Cylinders and Cores and Key Blanks collections.

Standardizing a Building on One Line

If you're trying to get from a mixed building to a standard one, the practical route is replacement-on-failure rather than a wholesale change.

Convert by corridor, not by opening. Replacing one lock in a run of eight leaves a visible mismatch for however long the other seven survive. Doing the run together costs more that month and looks deliberate afterwards.

One caution: before standardizing, check that the chosen line suits the heaviest openings in the building. Standardizing on a line that's underspecified for a main corridor just moves the failures around.

Available Finishes

• 626 satin chrome is the default and carries the deepest stock.

• Confirm availability for your function and trim, since ranges vary within a line.

• Match the lock to the hinges, closer and other hardware on the opening.

Benefits of the 7 Line

• Full commercial function range from passage to storeroom.

• Standard cylindrical prep for fast installation and replacement.

• Keying flexibility across conventional and interchangeable core systems.

• Consistency with other Sargent lines across a building.

• Wide finish range including stainless.

• Serviceable, with latches and parts available separately.

• Ready to ship. In-stock locks ship the same day.

Applications

• Offices and interior suites using office and entrance functions.

• Meeting and training rooms using classroom or passage functions.

• Restrooms using privacy functions.

• Storage and utility rooms using storeroom functions.

• Corridors and closets using passage functions.

• Buildings matching existing 7 Line hardware.

• Lock replacements on openings already fitted with this line.