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ASSA® TWIN EXCLUSIVE & V-10 HIGH SECURITY LOCKING SYSTEM
Unauthorized key duplication remains the single-most violated security policy in
today’s business. Those seeking to have a key copied usually meet with little or
no resistance. In fact, nearly all keys can - and will - be duplicated with no
questions asked. The stamping of “do not duplicate” presents a challenge to most
key cutters instead of a threat. It has been estimated that unauthorized key
duplication accounts for as much as 40% of unexplained illegal entries,
resulting in billions of dollars in losses to businesses each year.
The new Twin Exclusive and V-10 are protected by United States patents, Patent
Numbers 5,067,335 and 5,640,865. These patents are separate of the ASSA High
Security Cylinder Patents and protect the blank against unauthorized
manufacture.
The ASSA High Security Key is made available to selected customers throughout
the world on an exclusive or proprietary basis. That is, the keys for that
customer are unique for that customer.
Key duplication is simple if authorized by the customer, either on site or by
customer-appointed dealer.
Each ASSA High Security Cylinder has two independent locking mechanisms. The
first is a set of pins that must be elevated to a predetermined point and
aligned horizontally across the top of the inner cylinder. The second is a
sidebar that is uniquely mated to a key that is coded at the factory. This
sidebar and key combination can be exclusive to the customer and controlled by
state or region.
Here are some common misconceptions about key cutting rights and “restricted
keys”:
FICTION: Keys stamped “do not duplicate” are protected by law.
FACT: Many keys are stamped “do not duplicate" as a request to their holder.
There is no legal connection or consequence.
FICTION: Companies offering “restricted” keys mean that locksmiths or key
cutters are not allowed to duplicate them.
FACT: Most companies offer “restricted” keys. However, this term refers to that
company’s distribution policy on the key and has nothing to do with duplication
rights. Most restricted keys are easily duplicated.
FICTION: Keys for all “high-security cylinders” are protected from unauthorized
duplication.
FACT: Only the key blank can be protected from unauthorized manufacturing, and
then only if the key blank itself is patented. Purchasers of "high-security" keys
and cylinders should ask to see proof of patent on the key blank and not the
cylinder that it operates.
FICTION: Most key cutters will ask questions about your key and will normally
comply with any warning or request not to duplicate that key.
FACT: Only professional locksmiths will honor such requests if they are familiar
with the manufacturer. Non-professional key cutters such as hardware stores,
shops or mall vendors will usually duplicate any key if the key blank is
available to them.
Bonded Lock Service Inc.
Phone Numbers:
| Medford | 781-396-3443 |
| Waltham | 781-894-3696 |
| Cambridge | 617-492-6662 |
| Saugus | 781-233-6553 |
| Needham | 781-444-0012 |
| Arlington | 781-646-5397 (K-E-Y-S) |
And surrounding areas
Toll Free
1-888-775-5625 (L-O-C-K)
Hours
24 Hours a Day, 7 Days a Week
Call us out to get you in!
We can open most locks without drilling
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Mortise and Rim Cylinders | ASSA provides a full line of mortise cylinders designed to retrofit into most leading lock manufacturers' locksets and exit devices including Sargent, Arrow... read more |
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Cylindrical Lock Cylinders | ASSA's key-in-knob and key-in-lever type cylinders provide the ultimate in high security retrofit for a variety of leading lockset manufacturers... read more |
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High Security Deadbolt | The ASSA 6000 Series deadbolt is designed to withstand any form of physical attack including drilling, prying, driving, or pulling. Its free spinning guard... read more |
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High Security Padlocks | ASSA padlocks are constructed of the highest quality components and are capable of withstanding the most relentless forms of physical attack... read more |
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High Security Auxiliary Locks | ASSA High Security Auxiliary Locks utilize the same high security features and master keying capabilities as our other products plus... read more |
In January 2000, ASSA, Inc. opened a new facility in New Haven, CT. Occupying more than 5,000 square feet of manufacturing and administration space along Long Island Sound, ASSA has increased its production capabilities with state of the art machinery and assembly equipment. Our commitment to excellence will carry us forward into the new millennium and beyond.
ASSA was established in 1881 by the blacksmith August Stenman after buying a
small hinge manufacturer in the town of Eskilstuna, Sweden. One day his wife
embroidered a pillow slip with his name forwards and backwards-"August Stenman,
Stenman August", and so ASSA became the name of the new company. By 1939, ASSA
had produced its first cylinder lock and delivered its first 5-pin cylinder
master key system seven years later. In 1959, ASSA introduced its first
registered key systems with key control. In 1981, ASSA celebrated its 100th
anniversary as a company with the release of the ASSA Twin 6000 system, a new
cylinder concept utilizing the dual locking mechanisms of today's ASSA
cylinders.
ASSA, Inc was originally opened in Naperville, IL as a marketing arm of ASSA AB
in Sweden. Incorporated in 1984, ASSA, Inc was a full line manufacturer of
mortise locks, padlocks, auxiliary locks, and high security key systems. Under
the direction of Wayne Wilkerson, who became president and CEO in 1989, ASSA,
Inc. was transformed into the largest high security cylinder manufacturer in the
United States.
Starting in 1992, ASSA, Inc. shifted their sales direction from independent
dealer sales to institutional, industrial, and government sales. With the
introduction of their new master keying capabilities they became the logical
choice for institutions around the country. In 1996 alone, sales rose from under
$500,000.00 to over 8 million.
Some of the customers who made this possible are The World Bank, The United
States Supreme Court, Boeing, AT&T, Baltimore Ravens Stadium, The University of
New Hampshire, Prince George's County School District, Alexandria City Public
Schools, Tucson Unified Schools, and numerous Schools and federal government
facilities.
With the introduction of the V-10 system in 1996, ASSA ushered in a new
generation of lock technology offering patent protected, unique geographically
exclusive keyways for ASSA authorized security centers and end users. The
innovative V-10 key design and cylinder helped to eliminate unauthorized
duplicate keys and to maintain a key control system that is unmatched in the
industry.
In 2000, ASSA introduced the Twin Exclusive, a patent-protected upgrade to the
highly successful Twin 6000 series. Utilizing the same dual locking mechanism,
the Twin Exclusive built on the original design and allowed one key to work both
cylinders. That same year, ASSA, Inc opened its doors to a new 5,000 square foot
facility in New Haven, CT increasing its production capabilities with state of
the art machinery and assembly equipment.
The latest high security key control system introduced by ASSA in 2003 is the
Twin Pro, the most sophisticated key system being offered on the world market
today. Worldwide keyways can be obtained through written agreement with ASSA for
guaranteed exclusivity. The Twin Pro is not stocked by our traditional
distribution outlets eliminating the possibility of the system being
compromised. ASSA trains facilities to service these locks in-house or they can
be serviced by an ASSA certified service center.
The Twin Pro product line is set up to interface with the soon to be released
ASSA CLIQ system. Combining high security mechanical cylinders and keys with
state of the art electronics, the ASSA CLIQ provides the user with a level of
accountability and system control unmatched in the industry. A full audit trail
with date and time stamp ensures the security of all or selected openings within
the system while the keys can be used to operate standard mechanical cylinders
as well. The innovative ASSA CLIQ is yet another example of why ASSA continues
to be the world's leader in high security and patented key control solutions.
ASSA provides a full line of mortise cylinders designed to retrofit into most leading lock manufacturers' locksets and exit devices including Sargent, Arrow, Schlage, Yale, Corbin-Russwin, Best, and Von Duprin. Mortise cylinders are offered in lengths ranging from 1-1/8" to 2" (for special sizes, please consult Customer Service) and BHMA finishes 625, 626, 605, 606, 612, and 624. ASSA mortise and rim cylinders are available in removable core for quick and easy rekeying capabilities. Part numbers for mortise and rim cylinders are noted below.
| Model Number | ||||
|---|---|---|---|---|
| V-10 | Twin Exclusive | Twin Pro | Description | |
| 1-1/8" Mortise Cylinders | V6551-1 | E6551-1 | 6151-1 | with Adams Rite Cam |
| V6551-2 | E6551-2 | 6151-2 | with Sargent Cam | |
| V6551-3 | E6551-3 | 6151-3 | with Corbin Cloverleaf Cam | |
| V6551-4 | E6551-4 | 6151-4 | with Corbin Beaver Tail Cam | |
| V6551-5 | E6551-5 | 6151-5 | with Yale Standard Cam | |
| V6551-6 | E6551-6 | 6151-6 | with Schlage "L" Cam | |
| V6551-7 | E6551-7 | 6151-7 | with Segal Type Cam | |
| V6551-8 | E6551-8 | 6151-8 | with Corbin Jumbo Cam | |
| V6551-9 | E6551-9 | 6151-9 | with Best 30H Cam | |
| V6551-10 | E6551-10 | 6151-10 | with Norment/Airteq Cam | |
| V6551-11 | E6551-11 | 6151-11 | with Mogul Cam | |
| V6551-12 | E6551-12 | 6151-12 | with Corbin Jumbo Clover Leaf Cam | |
| V6551-13 | E6551-13 | 6151-13 | with Sargent Short Cam | |
| 1-1/4" Mortise Cylinders | V6552 | E6552 | 6152 | Specify Cam Type as Above |
| 1-3/8" Mortise Cylinders | V6553 | E6553 | 6153 | Specify Cam Type as Above |
| 1-1/2" Mortise Cylinders | V6554 | E6554 | 6154 | Specify Cam Type as Above |
| 1-5/8" Mortise Cylinders | V6555 | E6555 | 6155 | Specify Cam Type as Above |
| 1-3/4" Mortise Cylinders | V6556 | E6556 | 6156 | Specify Cam Type as Above |
| 1-7/8" Mortise Cylinders | V6557 | E6557 | 6157 | Specify Cam Type as Above |
| 2" Mortise Cylinders | V6558 | E6558 | 6158 | Specify Cam Type as Above |
| Model Number | ||||
|---|---|---|---|---|
| V-10 | Twin Exclusive | Twin Pro | Description | |
| 1-1/8" Rim Cylinders | V6551-H | E6551-H | 6151-H | with Horizontal Tailpiece |
| V6551-V | E6551-V | 6151-V | with Vertical Tailpiece | |
| V6551-L | E6551-L | 6151-L | with Corbin Cloverleaf Cam | |
| 1-1/4" Interchangeable Core Mortise/ Rim Cylinders |
V6552IC | E6552IC | 6152IC | Specify Cam Type or Tailpiece as Above |
ASSA's key-in-knob and key-in-lever type cylinders provide the ultimate in high security retrofit for a variety of leading lockset manufacturers including Sargent, Arrow, Corbin-Russwin, Yale, Schlage, and Weiser. All cylinders are available in BHMA hardware finishes 625, 626 605, 606, 612, and 624. Part numbers for key-in-knob and key-in-lever type cylinders are noted below.
| Model Number | ||||
|---|---|---|---|---|
| V-10 | Twin Exclusive | Twin Pro | Make | Description |
| V65611 | E65611 | 61611 | Schlage | Standard and heavy duty 6-pin, includes cap, pin, spring, and break-off tailpiece, B series D-bolts |
| V65631 | E65631 | 61631 | Yale | Standard and heavy duty |
| V65632 | E65632 | 61632 | Yale | Key-in-lever style |
| V65651 | E65651 | 61651 | Corbin-Russwin | Heavy duty, new style |
| V65652 | E65652 | 61652 | Corbin-Russwin | Standard duty, new style (not 3400, 3600, 3800 series) |
| V65653 | E65653 | 61653 | Corbin-Russwin | Russwin cylinder 19F35 |
| V65654 | E65654 | 61654 | Corbin-Russwin | Russwin cylinder 25F26, 25F56, 24F15, 67F69, 55F76 |
| V65655 | E65655 | 61655 | Corbin-Russwin | Russwin cylinder 25F65 |
| V65661 | E65661 | 61661 | Falcon | S & X Series, Use original manufacturer cap & tailpiece |
| V65671 | E65671 | 61671 | Sargent | Integra |
| V65672 | E65672 | 61672 | Sargent | Heavy duty 7,8,9 Lines KIK |
| V65673 | E65673 | 61673 | Sargent | Standard Duty 6 Line KIK, 7 Line KIL, 10 Line KIL |
| V65673-TZ | E65673-TZ | 61673-TZ | Sargent | 11 Line KIL |
| V65691 | E65691 | 61691 | Arrow | Standard and heavy duty, 3 tailpieces included, key-in-lever style |
| V65692 | E65692 | 61692 | Arrow | For Arrow deabolts only, includes tailpieces for double & single cylinders |
| V65681 | E65681 | 61681 | Weiser | 4000 & 9000 single cylinder deadbolts, entrance style handle locks |
| V65682 | E65682 | 61682 | Weiser | 4000 & 9000 double cylinder deadbolts, entrance style handle locks |
The ASSA 6000 Series deadbolt is designed to withstand any form of physical attack including drilling, prying, driving, or pulling. Its free spinning guard collars protect it from pipe wrenching while its hardened inserts guard against drilling. The 6000 comes equipped with the ASSA Hardhat to protect it from outside through-the-door attacks known as "ice picking." Removable core is an option with the ASSA 6000 deadbolt and the product is available in BHMA hardware finishes 625, 626, 605, 606, 612, 624, and 609. Part numbers for deadbolts are noted below.
| Model Number | |||
|---|---|---|---|
| V-10 | Twin Exclusive | Twin Pro | Description |
| V6000 | E6000 | 6100 | Single cylinder with inside thumbturn |
| V6000DC | E6000DC | 6100DC | Double cylinder |
| V6000NT | E6000NT |
6100NT | Single cylinder with no thumbturn |
| V6000IC | E6000IC | 6100IC | Single cylinder interchangeable core |
| V6000DCIC | E6000DCIC | 6100DCIC | Double cylinder interchangeable core |
ASSA padlocks are constructed of the highest quality components and are capable of withstanding the most relentless forms of physical attack. The Number 2 padlock features a body made of chrome plated extruded brass with a rust resistant case hardened steel shackle. The Number 3 padlock features both a case hardened steel body and shackle capable of standing up to more than 3 1/2 tons of force. The locking mechanism utilizes two case hardened steel balls and there are no external rivets or screws. Each model has weep holes for positive water drainage and protection from ice buildup. Removable core is available for the Number 2 padlocks only. Part numbers for padlocks are noted below.
| Model Number | |||
|---|---|---|---|
| V-10 | Twin Exclusive | Twin Pro | Description |
| V65190B | E65190B | 61190B | No. 2 Non key retaining |
| V65190LB | E65190LB | 61190LB | No. 2 Non key retaining, extended shackle |
| V65190SB | E65190SB | 61190SB | No. 2 Non key retaining, shrouded shackle |
| V65191B | E65191B | 61191B | No. 2 Key retaining |
| V65191LB | E65191LB | 61191LB | No. 2 Key retaining, extended shackle |
| V65391B | E65391B | 61391B | No. 3 Key retaining |
| V65191BIC | E65191BIC | 61191BIC | No. 2 Key retaining, interchangeable core |
| V65191LBIC | E65191LBIC | 61191LBIC | No. 2 Key retaining, extended shackle, interchangeable core |
ASSA High Security Auxiliary Locks utilize the same high security features and master keying capabilities as our other products plus allowing for innumerable uses and applications. We offer high quality cam locks, window locks, and cabinet locks. See below for a description of each.

ASSA Manufactures the most rugged high security cam locks in existence today. This is the ultimate in a key control product. The beefy design makes it perfect for inner safe doors and compartments, cash storage containers, drug carts, gun cabinets, alarm control panels, and key storage cabinets.
ASSA cam locks can be master keyed into any existing ASSA master key system without the loss of any combinations (Some pin stack height limitations may apply) Special hollowed out driver pins allow the springs to collapse within the pin enabling a six pin ASSA key to enter and operate the lock.
The Key Retaining cam lock rotates 90 degrees capturing the key until it is rotated back to the locked position. The Non-Key Retaining product allows the key to be rotated 360 degrees and removed leaving the lock in the unlocked position. The cam only rotates 90 degrees and is adjustable to lock in four different positions.
| Model Number | |||
|---|---|---|---|
| V-10 | Twin Exclusive | Twin Pro | Description |
| V6571 | E6571 | 6171 | Key retaining |
| V7571 | E7571 | 7171 | Non key retaining |

This is truly an innovative lock assembly. A rugged cast aluminum housing and strike assembly holds a solid brass six pin high security cylinder. ASSA Utility Locks are used to secure sliding glass or wood doors, storage cabinets, and windows. They can be keyed into any ASSA key system or used as a stand alone locking device. The body is finished with baked on white enamel.
This assembly locks with just one push of your thumb or finger, as easy as locking a file cabinet. The Utility Lock comes with all of its own mounting hardware for standard wood frame applications and shims for uneven surfaces.
| Model Number | |||
|---|---|---|---|
| V-10 | Twin Exclusive | Twin Pro | Description |
| V7680 | E7680 | 6180 | Utility Lock |

ASSA manufactures the finest quality cabinet and desk locks featuring our high security eleven pin cylinders. These locks are listed with Underwriters Laboratories as U.L. 437. Our cabinet and desk locks can be keyed into any ASSA master key system. The cylinder can be easily rekeyed by removing the setscrew on the side of the cylinder housing. Available in BHMA hardware finishes 605 and 626 only.
| Model Number | |||
|---|---|---|---|
| V-10 | Twin Exclusive | Twin Pro | Description |
| V700AS-138 | E700AS-138 | 61700AS-138 | 1-3/8" Door Lock |
| V800AS-138 | E800AS-138 | 61800AS-138 | 1-3/8" Drawer Lock |
| V850AS-078 | E850AS-078 | 61850AS-078 | 7/8" Deadlocking Latch |
| V850AS-138 | E850AS-138 | 61850AS-138 | 1-3/8" Deadlocking Latch |
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