What is the best commercial mortise lock?

The Schlage L9000 is the most widely specified. The Sargent 8200 has the highest cycle count at 14M+. The Corbin Russwin ML2000 is heavily specified on government projects. All are ANSI/BHMA Grade 1.

What is the difference between Grade 1 and Grade 2 locks?

Grade 1 locks are tested to 1,000,000+ cycles with higher impact resistance. Grade 2 are rated for 250,000 cycles. Grade 1 is standard for commercial exterior doors and high-traffic areas.

What is the best door lock for school classrooms?

The Schlage ND78 classroom security lock allows locking from inside without opening the door, meets ADA requirements, and maintains fire egress compliance.

What is the difference between Schlage ND and ALX?

ND is Grade 1 with 1M+ cycles and electrified options. ALX is Grade 2 with 250K cycles and modular chassis at lower cost. They share the same lever designs.

What is the most common commercial door closer?

The LCN 4040XP is the most widely specified surface-mounted commercial door closer in the US, covering sizes 1-6 and all three mounting types.

What locks are used in hospitals?

Grade 1 mortise locks on high-traffic doors, cylindrical locks on patient rooms, electronic access with audit trails on pharmacy and restricted areas.

How much cheaper is wholesale vs retail door hardware?

Wholesale pricing on commercial door hardware is typically 20-40% below manufacturer list price. Project quotes for large orders can be even lower.

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Electric Strikes

Electric Strikes

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An electric strike replaces the standard strike plate in the door frame so an access control system, keypad, intercom or push button can release the door. The lockset stays the same: when the strike is energized (or de-energized, depending on the mode), its keeper swings open and the door can be pushed or pulled open with the latch still extended.

B&H Depot carries electric strikes from HES (including the 1006, 5000 and 9600 Series), Trine, RCI, SDC, Adams Rite and Von Duprin, for cylindrical locks, mortise locks, rim exit devices and aluminum storefront doors.

Fail Safe vs. Fail Secure

Fail secure strikes stay locked when power is removed and release when power is applied. Fail safe strikes release when power is removed and lock when power is applied. Fire-rated doors must stay latched during a fire, so they generally use fail secure strikes with a fire-rated listing. Many strikes are field selectable between the two modes.

How to Choose an Electric Strike

Lock type: match the strike to your lockset: cylindrical, mortise, rim exit device or narrow stile aluminum door.
Frame: hollow metal, wood or aluminum frames need different strike bodies and faceplates.
Voltage: most strikes run on 12 or 24 volts, AC or DC. Match the strike to your power supply.
Monitoring: a latchbolt monitor (LBM) or latchbolt strike monitor (LBSM) reports whether the door is latched.
Fire rating and holding force: check the product specifications for UL fire listing and static strength.

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Frequently Asked Questions

What is the difference between fail safe and fail secure?

A fail secure strike stays locked if power is lost. A fail safe strike unlocks if power is lost. Many electric strikes can be switched between the two modes in the field.

Should I use 12V or 24V?

Use the voltage your power supply and access control system provide. Many strikes accept both 12 and 24 volts; check the product specifications.

Can I use an electric strike with a mortise lock or exit device?

Yes, but you need a strike made for that lock. Mortise locks and rim exit devices use different strike bodies than cylindrical locks.

What is a latchbolt monitor?

A switch in the strike that reports when the latch is fully in the strike, so your system knows the door is secured.

Electric strike or maglock?

An electric strike keeps your existing lockset and allows free mechanical exit. A maglock holds the door with a magnet and needs a request-to-exit device and fire alarm release. Strikes are often preferred where free egress and fire ratings matter.