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M Series Anti-ligature Solutions

ANSI Grade 1 Extra Heavy Duty

When a safe environment is needed

A lock is thought to be safe when it prevents forced intrusion. But is that the only risk we may encounter?

In recent years, suicide rates have increased alarmingly, among which ligature strangulation is one of the most common cases of self-inflicted injury. This typically occurs in buildings such as detention centers, hospitals, mental health centers, where mere constant monitoring is insufficient to prevent disasters to happen.

Klacci’s Anti-ligature Solutions provide the perfect hardware to prevent ligature attachment and self-harm, thus ensuring a risk-free environment.


Surpassing the strictest of requirements

As part of the world-renowned I-TEK Lock Manufacturing Group, Klacci has not only inherited the expertise of 50 years of lock manufacturing, but also the expectation to provide the highest quality products.

Klacci’s Anti-ligature Solutions have gone through meticulous designs and improvements, and have been tested and certified to ANSI/BHMA A156.13 and ADA compliance, offering quality guaranteed products to our customers.

When choosing Klacci, you may rest assured that your doors are safe and secure.




M Series Anti-Ligature Solutions have been designed to meet the strictest of safety requirements that Health Facilities need.

Our conical lock designs with sloped surface prevent ligature attachment, thus providing a safer environment. Complying with ANSI/BHMA A156.13 testing standard requirements, the lever handle design includes a clutch function, increasing the lock’s durability as well as the overall safety.

Trim type can be chosen between Lever and Knob design. The application of thru-bolt fastening adds additional strength. For lock functions, see page 5; we offer a wide range of function options, for specialized options, please contact our sales personnel for details.



Certification/Compliance• ANSI/BHMA A156.13 Series 1000, Grade 1 operational and security.
• UL Listed for 3-Hour Fire rating.
Backset• 2-3/4″ (70mm) only.
Doors & Preparations• Conforms to ANSI A115.1.
Door Range• 1-3/8″ (35mm) to 2-1/2″ (64mm).
Spacing• 3-5/8″ (92mm) Center cylinder to spindle.
• 2-7/16″ (62mm) Center thumbturn to spindle.
Deadbolt• 1″ (25mm) Throw, Stainless Steel.
Latchbolt• 3/4″ (19mm) Throw, with anti-friction tongue. All Stainless Steel.
Case Size• 4-5/16″ x 6″ x 1″ (110mm x 152mm x 25mm).
Armor front• 1-1/4″ x 8″ x 7/32″ (32mm x 203mm x 5mm).


Function Code NumberDescriptionANSI/BHMA
Without Deadbolt
Function Code NumberDescriptionANSI/BHMA
With Deadbolt

*Caution : Double cylinder locks on residences and any door in any structure which is used for egress are a life safety hazard in times of emergency and their use is not recommended. Installation should be in accordance with existing codes only.


Trim Options

Made of brass or stainless steel, these trims are designed with elegance. The sloped profile prevents ligature attachment on the horizontal surface. Lever or knob handle options are available in standard or clutch (free turning) functions.

An optional anti-microbial coating can be applied. Specially formulated to prevent bacterial growth on door handle surface. Suitable for high-traffic applications in high-sanitary demanding locations. To order, add prefix AC.



Cylinders Full-face StandardFULL FACE
Cylinders Full-face IC CoredFull-face
I/C Core


Armor front (Faceplates)

Made of brass, bronze or stainless steel, available with square corner or 1/4″ radius corner. Complete unit of armor front supplied with screws. Ordering info for ordering the armor front separately are listed below.

Square Corner
Square Corner
1/4″ Radius
Square Corner1/4″ Radius CornerDescription
#528-711#528-731#528-721#528-741Latch x Aux. Latch x Deadbolt
#528-712#528-732#528-722#528-742Latch x Aux. Latch
#528-713#528-733#528-723#528-743Latch x Deadbolt
Non-handed, made of brass, bronze or stainless steel. Available with square corner or 1/4″ radius corner.

Complete strike unit supplied with strike box and screws. Custom lip lengths at 1/8″ (3mm) increments available.
Square Corner
1/4″ Radius Corner

Headquarters and Operation Office

I-TEK Metal Manufacturing Co., Ltd.

Global Office


BHMA, UL, Intertek
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