Sargent 10XG04 Grade 1 Storeroom/Closet Cylindrical Lock

Sargent 10XG04 Grade 1 Storeroom/Closet Cylindrical Lock - ANSI Function F86

The Sargent 10XG04 is the storeroom function configuration of the Sargent 10X Line Grade 1 cylindrical lock - one of the most tested and documented commercial lever locksets in production. ANSI function F86 defines the storeroom function precisely: the outside lever is locked at all times. Entry from outside requires a key. Exit from inside by lever is always free, with no key required. The outside lever does not unlock when someone turns the inside lever. It stays fixed until a key is used from outside.

This is the correct function for pharmacies, medication rooms, server rooms, stock rooms, utility spaces, controlled access storage, and any commercial or institutional door that must stay locked from outside at all times while maintaining unrestricted egress from inside. It is not the right function for offices or entrances where staff need to lock the door from inside using a turn button - that is the F81 entrance/office function. Confirming you need always-locked-from-outside before ordering saves a return.

Why the 10X Line Outperforms Every Grade 1 Competitor

ANSI/BHMA A156.2 Grade 1 sets the performance floor for commercial cylindrical locks. The Sargent 10XG04 does not sit on that floor. Independent testing verified by UL (Verification ID: V584148) confirms the 10X Line completed 20 million operational cycles - the standard Grade 1 minimum is 250,000 cycles. That is 80 times the required minimum, not 20, and it is verified by a third party, not just claimed in marketing copy.

On forced entry resistance, the 10XG04 withstands 3,100 inch-pounds of locked lever torque - 2.6 times the ANSI Grade 1 requirement. Offset lever pull resistance reaches 1,600 pounds - 8 times the Grade 1 standard. The lock also handles 100 vertical impact cycles without allowing entry, which is 20 times the required minimum. These are not comparable to what competitor Grade 1 cylindrical locks deliver at the same price point.

Freewheeling Lever: Security Built Into the Outside Handle

When the outside lever is locked, it rotates freely - up and down - without actuating anything inside the lock body. This is not a comfort feature. It is a security mechanism. A rigid locked lever provides torque leverage for a physical attack. A freewheeling locked lever provides no leverage at all. Attempting to force entry by twisting or pulling the outside lever does nothing to the internal mechanism. Stops built into the rose prevent the lever from traveling beyond 60 degrees in either direction, protecting the trim from damage against door stops and walls.

Applications, Compliance, and Certifications

The 10XG04 is UL and ULC listed for 3-hour fire-rated door assemblies. It meets ADA requirements for lever operation with a maximum activation force of 5 pounds. It carries Florida Building Code and Windstorm certification to ASTM E330, E1886, and E1996 standards, covering coastal and hurricane-zone installations where most cylindrical locks do not qualify.

Suitable for heavy-duty commercial and institutional applications including schools, universities, hospitals, manufacturing facilities, government buildings, and any environment combining high daily traffic with regulatory access control requirements.

Cylinder Formats and Keyway Compatibility

The 10XG04 supports three cylinder formats in a single lock body: conventional 6-pin or 7-pin, Large Format Interchangeable Core (LFIC) for Schlage, Best, and Corbin Russwin IC programs, and Small Format Interchangeable Core (SFIC) for facilities running BEST or compatible SFIC key systems. Over 30 Sargent keyways are available, including LA (standard), all CA, CB, CC, CE, HA, HB, HC, LL, R, and U series keyways, matching any existing Sargent master key program.

Available in 15 finishes including 26D satin chrome, 626, 10BE dark oxidized bronze, and BSP bright stainless. 10-year limited warranty on mechanical components.