Quality Door & Hardware :: Locksets :: Mortise Locksets :: BEST 40H Series Mortise Locks - 45H Single Keyed with Latch

BEST 40H Series Mortise Locks - 45H Single Keyed with Latch

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BEST 40H Series
Mortise Locks
45H Single Keyed with Latch, Less Core

Solid one-piece stainless steel anti-friction latch provides 50% more surface contact with strike for superior strength and security. Reversible latch rotates 180 degrees for easy handing change without opening case. Precision-engineered curve provides enhanced cycle life with reduced wear to the strike.
Non-handed cylinder retainer and stainless steel auxiliary bolt for ease of changing hand
Armored front completely surrounds latch and deadbolt providing increased lateral strength. Staked assembly design allows the armored front to self-align with the door bevel during installation.
Enhanced case integrity achieved through four case cover screws (one at each corner), plus interlocking armored front and cover design at the latch
Roller bearing hub mechanism provides smooth, wear resistant operation
Locking toggle includes clear indication of “locked” and “unlocked” states
40H case, cover, and armored front manufactured from 0.095” cold rolled steel for strength and durability
Fusible link
Four position hub toggle design determines whether each hub is always locked, always unlocked, or locked by key for easy handing change without opening case
Lever return spring mechanism located in trim for enhanced protection against lever droop, providing a firm, positive return of the lever to the horizontal position
Self-aligning trim mechanism for fast, easy, and accurate installation
Curved lip strike and strike box assembly provides an aesthetic, non-handed solution to complement field reversible case
Solid machined cylinder rings with tension spring provide resistance to wrenching of cylinder. Cylinder security screw prevents removal of cylinder without first removing interchangeable core.

Specifications

American National Standards
ANSI A156.13, Series 1000, Grade 1 Operational
and Grade 2 Security

Underwriters Laboratories®
The 40H series is listed by Underwriters Laboratories for use on a 3 hour A label doors. These locks also carry the C-UL mark which is officially accepted in all of Canada, indicating compliance with appropriate Canadian standards and codes.

Miami-Dade County Code Compliance Office
For the “AB” function the 40H series lock is certified for use in applications requiring a design pressure rating of ± 90 PSF for single doors and ± 50 PSF for double door openings. The 40H series lock has received a notice of acceptance from Miami-Dade County and is considered Miami-Dade County product control approved.

Case
0.095" cold rolled steel
5-7/8" H x 7/8" D x 4-1/16" W
Steel is zinc dichromate plated for corrosion protection.

Faceplate
Brass or bronze material, 8" H x 1 1/4" W x 1/16" T.
Lock face automatically adjusts to proper bevel during installation.

Strike
Brass, bronze, or stainless steel base material,
4-7/8" x 1-1/8" x 3/32" . Fits standard door frame cut out as specified in ANSI A115.1. Universal (non-handed) strike and strike box combination supplied standard with lock.
Handed strikes (for use without strike box) available for special order.

Backset
2-3/4"

Door Thickness
Standard lock configuration designed for doors 1-3/4" thick. Please contact us for doors thicker than 1-3/4".

Latchbolt
Solid stainless steel, 3/4" throw. Latch is oil impregnated for anti-friction operation. Reversible without opening case.

If you know exactly what you need in a mortise lock, and are confident that your needs won’t change, then order your 40H locks in the traditional way by specifying the exact function, trim, finish, and handing. BEST will build the locks to work exactly as specified, so they may or may not have the ability to be converted to another function in the future.

For more flexibility, check out the BEST 45H Universal Mortise Lock, now available at Qualitydoor.com.

Less core: core sold separately.

**To help customize your 45H mortise lock, click the options below to view images and details.

Functions

A - Office

Latch operated by:
-Rotating inside lever, or
-Rotating outside lever--only when locking toggle is in unlocked position, or
-Turning key in outside cylinder