BEST 45H Series

If your door schedule calls for a BEST 45H and you're not sure which function you need, you're in the right place. American Locksets has stocked BEST 45H locksets since 2001 - 23 functions, the full spec lineup.

What Is the BEST 45H Series?

It's BEST's traditional heavy-duty mortise lock - Grade 1, SFIC housing, solid stainless steel guts throughout. The core idea is simple: you pick the function that matches your opening, BEST builds it into the lock case at the factory, and it shows up ready to install. No field reconfiguration. No rearranging internals on a job site.

That's actually the clearest way to explain how the 45H differs from the BEST 40H. The 40H uses a universal case that can be reconfigured into over 12 functions without even opening the case - great for flexible specs and large projects where the door schedule might shift before install. The 45H is for when the schedule is locked and you want a lock that arrives dialed in. Same quality. Different philosophy.

If you've seen the "Stanley / BEST" designation on these products and wondered about it, here's the short version: BEST Access Systems was acquired by Stanley Security Solutions and is now part of dormakaba. The lock hasn't changed. It's still the same product, same build, same part numbers - just with the brand history showing in the name.

BEST 45H Lockset Specs

The case is 0.095-inch cold rolled steel - 5-7/8" high, 7/8" deep, 4-1/16" wide - zinc dichromate plated for corrosion protection. The armored front completely surrounds the latch and deadbolt, self-aligning to the door bevel during installation so you're not fussing with alignment in the field.

Backset is 2-3/4" standard. The latchbolt is solid one-piece stainless steel with a 3/4-inch throw, oil-impregnated so it moves cleanly for years without maintenance. It reverses 180 degrees for handing changes without cracking open the case - genuinely useful when an opening gets reversed during construction. The deadbolt is stainless with a 1-inch throw. Auxiliary bolt is stainless, non-handed.

The faceplate runs 8" high by 1-1/4" wide. Every 45H with a keyed function ships with a 7-pin SFIC housing that accepts all BEST interchangeable cores - less core, meaning the core from your building's existing BEST key system drops right in. The trim is self-aligning and through-bolted, driven by a roller bearing hub mechanism that keeps the lever smooth through the kind of cycle counts that kill cheaper hardware.

One thing worth knowing: the spindle is intentionally designed to twist before breaking under a forced attack. That's not an accident - it means a forced entry attempt destroys the spindle, not the internal mechanism, so the lock can be repaired quickly rather than replaced.

On paper, the 45H is ANSI A156.13 Series 1000, Grade 1 Operation and Strength with Grade 2 Security. It's UL listed for 3-hour A label fire doors, ADA compliant per ANSI A117.1 section 404.2.6, and Buy American Act compliant. If your project needs full Grade 1 Security, you'll need a drill-resistant core (1CD, 1CDP, 1CDF, or 1CDX) with escutcheon trims, or a 1EK7K4 high-security cylinder with sectional trims.

45H Lockset Functions: Which One Do You Need?

Classroom, Storeroom, Office, and the Rest

The function code is the second half of every 45H model number. "7" in the middle means 7-pin SFIC housing. "0" means keyless. Here's what each configuration actually does:

The 45H7R classroom lock is the most-specified model in K-12 and higher education. One turn of the inside cylinder locks the outside lever without opening the door - no key needed to engage the lockdown, and the outside lever stays rigid until someone with a key retracts it from outside. That's exactly what school lockdown protocols call for, and it's why this model ends up on most institutional schedules.

The 45H7D storeroom lock works differently - the outside lever is always rigid regardless of any key state. Every single outside entry requires a key, and each entry unlocks temporarily, not permanently. Inside, the lever always works for immediate egress. Right function for pharmacy doors, data centers, secured storage, any opening where you want no passive entry from outside.

45H7AT office function gives you key-controlled outside lever access - unlock it and the lever is free, lock it and the lever is rigid. That's the standard office configuration most building managers recognize.

The 45H7T, 45H7TA, and 45H7TD dormitory functions let the room occupant press a button or turn a thumbturn to hold the latch retracted for free entry - someone can leave the door accessible without propping it. The inside cylinder releases the holdback and puts the door back to keyed entry when the occupant wants it secured again. These three variants cover different cylinder and indicator combinations for the same base dormitory/hotel application.

45H7IND intruder goes a step further than classroom. In classroom function, only the outside lever locks. In intruder function, the inside cylinder can lock the inside lever too - the room occupant can secure the door against forced entry from both directions. Healthcare and secure institutional facilities specify this when protecting room occupants is as important as controlling outside access.

45H7G communicating has keyed cylinders on both sides. 45H7RHB classroom holdback adds an inside lever holdback to the standard classroom function. 45H7WD, 45H7YD, and 45H7AD are deadlock-only configurations for applications that need a mortise dead latch without a latchbolt.

Non-Keyed Functions

The 0-prefix models don't have a cylinder housing. 45H0N passage - lever always free from both sides, no locking. 45H0L and 45H0LT privacy - inside thumbturn locks outside lever, coin release from outside for emergencies. 45H0NX exit - inside lever always free, outside lever can't retract latch. 45H01DT and 45H02DT dummy - trim plates only, no latch, for inactive leaves of paired doors.

Electrified and Keypad Options

The 45HW7DEL fail-safe electrified mortise lock runs the outside lever through a solenoid. Power on = locked (access controlled). Power off = unlocked. That's fail-safe - required on any egress path door under NFPA 101. The 45HW7DEU fail-secure version flips it - power off means locked, for secure perimeter doors where losing power shouldn't mean losing security.

45HZ7DV is the standalone electronic keypad version - 7-pin housing, keypad entry, no wired controller required. Works as a self-contained access control solution when you need keypad access on a single door without running it through a full access control panel.

Visual Indicators and the UltraShield Finish

On select 45H models, you can add a visual indicator that shows locked/unlocked status from a distance. VIN is a single padlock icon on the lever rose - open padlock means unlocked, red closed padlock means locked. VIT pairs that indicator with a keyed thumbturn. VIB puts indicators on both sides of the door. Hospitals and secure care facilities specify these so staff can verify door status without touching the hardware.

The UltraShield antimicrobial finish, available in 626AM (satin chrome) and 630AM (satin stainless), uses silver ion-based technology to suppress bacterial growth on the surface. It's specified in hospitals, eldercare facilities, food service environments, and schools - anywhere that hands touch hardware constantly and surface hygiene is a documented priority.

Why the 45H Keeps Showing Up on Institutional Specs

It's not nostalgia. There are real operational reasons why facilities managers at universities, hospital systems, and government buildings keep writing BEST 45H into their schedules.

The SFIC housing is probably the biggest one. When a key needs to be changed on any door in the building, you pull the core with a control key, drop in a new one, done. No locksmith needed, no drilling, no cylinder swap. On a campus with 500 doors, that difference in rekeying speed is measured in days of labor, not hours. The roller bearing hub mechanism holds up through 800,000 cycles and beyond, which matters on a dorm corridor door that gets opened 300 times a day for 30 years. And the self-aligning trim makes installing 50 locks on a new wing consistent enough that a two-person crew can actually hold to a schedule.

The intruder function, the classroom holdback, the dormitory variants, the UltraShield finish - none of these were dreamed up in a product development meeting. They came from facilities managers describing real problems on real buildings. That's what makes the 45H an institutional lock rather than a commercial lock with institutional marketing.

Frequently Asked Questions: BEST 45H Series

Q: What's the difference between the BEST 45H and the 40H? 

45H is function-specific - ships as a fixed, factory-built function. 40H is a universal case you can reconfigure in the field. Same quality, different ordering approach.

Q: What's the difference between the 45H and 47H?

 45H meets Grade 1 Operation and Strength with Grade 2 Security. 47H achieves full Grade 1 including Security, requiring specific drill-resistant cores.

Q: What does "less core" mean on the 45H? 

The SFIC housing ships empty. You install the BEST interchangeable core from your building's existing key system - it drops directly into the housing.

Q: How does the 45H7R classroom function work for lockdown?

 One turn of the inside cylinder locks the outside lever without opening the door. Key from outside retracts. Compatible with standard school lockdown protocols.

Q: What's the latchbolt throw?

 3/4-inch (19mm), solid one-piece stainless steel, oil-impregnated anti-friction. Reverses 180 degrees for handing changes without opening the case.

Q: Is the 45H Series UL fire rated? 

Yes. UL listed for 3-hour A label fire door installations when used with listed hardware.

Q: Fail-safe vs fail-secure on the electrified 45H - what's the difference? 

Fail-safe (45HW7DEL) unlocks on power loss - for egress doors. Fail-secure (45HW7DEU) stays locked on power loss - for secure access control points.

Q: What's the UltraShield finish? 

A silver ion-based antimicrobial coating in 626AM and 630AM finishes. Suppresses bacterial growth on the hardware surface. Specified for healthcare, education, and food service.

Q: What finishes are available? 

605 (bright brass), 606 (satin brass), 612 (satin bronze), 619 (satin nickel plated), 622 (antique nickel), 625 (bright chrome), 626 (satin chrome), 630 (satin stainless), plus UltraShield antimicrobial in 626AM and 630AM.