Master Lock Company, 137 West Forest Hill Avenue, P.O. Box 100367, Oak Creek, Wisconsin 53154
TELEPHONE: 800-308-9244; FAX: 800-308-9245; WEBSITE: www.masterlock.com
SECTION 10 51 61
BUILT-IN COMBINATION LOCKS
*****Since 1921, Master Lock Company has been providing padlocks and other security
products for the construction industry. Products include built-in combination and keyoperated locks for all types of lockers, combination padlocks for padlock hasp lockers,
and lock management software. This product guide specification section can be used to
specify the following built-in combination locks to be installed on metal, wire mesh, wood,
plastic, and other types of locker:
The specifier will need to select appropriate products and delete non-applicable models
and options. Refer to Master Lock product literature for descriptions and available
options. The guide section has been written so that most editing can be accomplished by
deleting unnecessary requirements and options. Depending on project requirements,
some additional information will need to be added by the specifier. Options are indicated
by [ ]. Notes to assist the specifier in selecting options and editing the specification
guide are printed in bold and indicated with *****. For final editing, all brackets and
notes will need to be deleted from the guide.
For ADA accessible locks, lock operation must meet the requirements of the current
edition of the Department of Justice (DOJ) ADA Standards for Accessible Design (ADA
Standards) or ICC/ANSI A117.1 – Accessible and Usable Buildings and Facilities.
Verify with local jurisdiction which standard has been adopted for the project location.
Master Lock Company, 137 West Forest Hill Avenue, P.O. Box 100367, Oak Creek, Wisconsin 53154
TELEPHONE: 800-308-9244; FAX: 800-308-9245; WEBSITE: www.masterlock.com
ADA Standards for Accessible Design; per Chapter 2, Article 2.25 – Storage; requires
providing a minimum of 5 percent ADA Accessible lockers (minimum of 1)
Master Lock recommends only ordering ADA compliant lock models to meet the
minimum 5 percent ADA requirement, with the remainder of the locks being ordered as
the standard models. For example, for a facility using lift handle lockers, a minimum of
5 percent of the locks should be model 1636MKADA and the remaining locks (typically
95%) should be specified as model 1630 locks. ADA locks are slightly more expensive, this
recommendation will provide the least cost option to meet the ADA Standards cited
above.
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PART 1 - GENERAL
1.1 SUMMARY
*****Built-in, combination locks can be factory installed by the locker manufacturer or
field installed on either existing or new lockers. Field installed locks can be part of a
complete construction project, such as a new school building, or can be purchased
directly by the owner and installed by the building maintenance staff. If the locks are to
be factory installed, the locks can be specified separately using this guide specification or
the lock requirements can be included as part of the locker specification. Edit the
following paragraph to reflect project requirements. *****
A. Section includes:
1. Built-in, combination locks to be [factory installed on lockers.] [field installed
on existing lockers.] [field installed on lockers specified in other sections.]
*****For both large and small projects, a system to track and manage locks, user
assignments, and lock combinations is essential. Master Lock's LockerManager®
software is an excellent management tool. Include the following paragraph if
LockerManager is specified in this section. *****
2. Automated Lock and Locker Database Management System for recording and
managing lockers, locks, user assignments, and combinations.
B. Related Sections:
*****List other specification sections dealing with work directly related to this section
such as the following. *****
Master Lock Company, 137 West Forest Hill Avenue, P.O. Box 100367, Oak Creek, Wisconsin 53154
TELEPHONE: 800-308-9244; FAX: 800-308-9245; WEBSITE: www.masterlock.com
1.2 DEFINITIONS
A. ADA Compliant Locks: Locks designed to meet the ADA requirements cited in the
current edition of the DOJ ADA Standards for Accessible Design or ICC/ANSI
A117.1 – Accessible and usable Buildings and Facilities.
B. Control Key: Key provided by lock manufacturer for use with Standard Lock
models that will open any lock in a designated Standard Lock system.
C. Dead bolt lock: Type of lock that once locked, the latch or bolt cannot be retracted
or moved until the lock is properly unlocked by either dialing the correct
combination, or turning a key.
D. Master Key: Key provided by lock manufacturer for use with Three-Ways-to-
Open ADA Compliant Locks that will open any Three-Ways-to-Open ADA
compliant lock in a designated lock system.
E. Slam Shut Operation: Indicates that the locker door will automatically lock by
simply shutting the locker door. No further action is required.
F. Standard Locks: Locks designed for standard use and are not designed to meet
ADA Standards.
G. Student Key: Is a key provided with an ADA lock that allows the user to open one
designated ADA lock.
H. Supervisory Key Access: A key provided by lock manufacturer that provides
access to any lock in a lock system. Standard locks and ADA compliant locks
cannot use the same supervisory key. Standard locks are provided with a Control
Key and ADA compliant locks are provided with a Master Key.
I. Three-Ways– to-Open operation: Indicates that the combination lock can be
opened by use of the correct combination, use of a master key, or use of a student
key.
1.3 SUBMITTALS
C. Provide in accordance with Section [01 33 00 - Submittal Procedures] [insert
Master Lock Company, 137 West Forest Hill Avenue, P.O. Box 100367, Oak Creek, Wisconsin 53154
TELEPHONE: 800-308-9244; FAX: 800-308-9245; WEBSITE: www.masterlock.com
*****Include the following paragraph if LockerManager system is being specified. *****
3. Product data for lock management system describing functions, capacities, and
requirements.
D. Provide in accordance with Section 01 78 00 - Closeout Submittals:
1. Printed control chart and text file on disc of serial numbers and lock
combinations.
***** For supervisory key access, a designated lock system with both standard locks and
ADA compliant locks will require a control key for opening any standard lock and a
master key for opening any ADA compliant lock. ADA complaint locks and standard
locks cannot use the same supervisory key.*****
*****For standard lock systems, Master Lock recommends a minimum of 2 control keys
be provided per facility. Each control key opens any standard lock in a designated lock
system. *****
2. [2] [_____] each control keys.
*****For ADA compliant locks, Master Lock recommends a minimum of 2 master keys
be provided per facility. Each master key opens any ADA compliant lock in a designated
lock system. In addition a minimum of 2 student keys should be provided for each ADA
compliant lock in a designated lock system.*****
3. [2] [_____] each master keys.
4. [2] [_____] each Student keys with removable ADA compliant keyheads for
each ADA compliant lock.
*****Include the following paragraph if LockerManager system is being specified. *****
5. Electronic copy of manual for lock management system.
PART 2 - PRODUCTS
2.1 ACCEPTABLE MANUFACTURERS
A. Master Lock Company, 137 West Forest Hill Avenue, P.O. Box 100367, Oak
Creek, Wisconsin 53154; 800-308-9244; www.masterlock.com.
B. Requests to use equivalent products of other manufacturers shall be submitted in
accordance with Section 01 25 13 - Product Substitution Procedures.
Master Lock Company, 137 West Forest Hill Avenue, P.O. Box 100367, Oak Creek, Wisconsin 53154
TELEPHONE: 800-308-9244; FAX: 800-308-9245; WEBSITE: www.masterlock.com
*****Master Lock built-in, combination locks can be factory or field installed on lockers
manufactured by numerous manufacturers. Refer to Master Lock product literature for
charts listing appropriate locks for various manufacturer's lockers. Select required lock
from the following articles and delete articles for nonapplicable models. If locks are being
specified as part of the locker specification, these articles can be inserted into the locker
specification section. *****
2.2 COMBINATION LOCKS FOR LIFT HANDLE LOCKERS
*****These eight models of built-in combination locks are provided for lift handle
lockers.
Standard Locks:
Model 1630: Right-handed with plastic dial.
Model 1631: Left-handed with plastic dial.
Model 1630MD: Right-handed with metal dial (MD).
Model 1631MD: Left-handed with metal dial (MD).
ADA Compliant Locks:
ADA compliant locks offer Three-Ways-To-Open Operation
These locks meet the Department of Justice (DOJ) ADA Standards for Accessible
Design (ADA Standards) and ICC/ANSI A117.1: Operation of the lock shall not
require tight grasping, pinching, or twisting of the wrist. The force required to
operate component shall be 5 pounds maximum.
ADA Standards for Accessible Design; per Chapter 2, Article 2.25 – Storage;
requires providing a minimum of 5 percent ADA Accessible lockers (minimum of
1)
Master Lock recommends only ordering ADA compliant locks to meet the 5
percent minimum ADA Standard, with the remainder of the locks ordered as
standard locks.
Model 1636MKADA: Right-handed with plastic dial.
Model 1637MKADA: Left-handed with plastic dial.
Model 1636MKMDADA: Right-handed with metal dial (MD).
Model 1637MKMDADA: Left-handed with metal dial (MD).
Edit the following to reflect required model. *****