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    Deadbolt Locks
    1. Home
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    3. Deadbolt Locks
    Item # OY1001516KDMKD-19 • Mfr # 100-US1978-KDMK

    N Series Pin Tumbler Deadbolt Door Lock, Flat Black, Master Keyed/Keyed Different, 15/16" Cylinder Length

    • User manual 1, 100-US1978-KDMK
      User manual 1, 100-US1978-KDMK

    Description

    N Series Pin Tumbler Deadbolt For Door Security

    N Series pin tumbler deadbolt sets up a master keyed/keyed different flat black lock that ties into the Olympus N Series system on doors needing controlled access. The deadbolt lock uses a solid brass pin tumbler cylinder so the keying stays consistent with other N Series hardware on the job. The body is zinc die cast, giving the cylinder a stable housing that supports precise key operation in repeated cycles. The cylinder length is 15/16 inch, which suits door constructions that are built around this standard size. The keyway follows the N Series pattern, equivalent to National D4291 4-pin or D4292 5-pin systems, so existing N Series key systems can operate this lock. The deadbolt has a flat black finish that visually matches other flat black door components in the same opening.

    Deadbolt Details That Support Key Control

    • The N Series keyway, equivalent to National D4291 4-pin or D4292 5-pin systems, lets this deadbolt operate within a broader N Series key hierarchy where a single pattern can manage multiple doors.
    • Stock keying as KD/KA 4-pin standard, with stock KA numbers 101, 103, 107, and 915, sets clear key groups so multiple locks can share or separate access as required on a project.
    • Master keyed operation using a 5-pin standard, with grand masterkeyed capability available, supports tiered access levels where different user groups need controlled entry through the same door.
    • The rekeyable design using a set screw cylinder release mechanism allows cylinder changes based on existing N Series setups so key plans can be adjusted as occupancy or access patterns change.
    • Two keys assigned per lock give an immediate working pair for each keyed position so installers and facility teams can place one key in service and retain another for controlled access.

    Functional Locking And Cylinder Construction Details

    The Olympus N Series pin tumbler deadbolt uses a solid brass cylinder that forms a precise interface with N Series keys so the locking action remains consistent with other brass-based cylinders. The zinc die cast body supports the cylinder in the door so the key plug stays correctly aligned over repeated use. The cylinder length of 15/16 inch sets the lock up for doors built to accept that length, which aids layout when coordinating with other N Series hardware. The standard function keeps the key removable in both locked and unlocked positions, which lets users remove the key after securing or opening the door. A non-handed standard function means the same lock body serves on either side orientation where this deadbolt is specified.

    Deadbolt Use, Grade Rating, And Keying Roles

    Where This Olympus N Series Deadbolt Fits Best

    The N Series pin tumbler deadbolt door lock fits projects that already use, or plan to use, Olympus N Series keying because the keyway is N Series, equivalent to National D4291 4-pin or D4292 5-pin systems. The 15/16 inch cylinder length aligns with door builds that are laid out around this specific length, supporting consistent backset and edge prep where this dimension is standard. An ANSI/BHMA A156.11 Grade 1 performance rating, equivalent to E07121(100DR), positions this lock for openings that call for a Grade 1 deadbolt function. The flat black finish supports door designs that call for a dark, uniform appearance on visible lock components so hardware lines stay consistent from room to room.

    Why Keying, Materials, And Function Support Workflow

    Being keyed together with other N Series locks means this deadbolt can share a common key with matching N Series cylinders, which reduces the number of keys users carry when locks are set to a KA group. The stock KD/KA 4-pin standard, with KA numbers 101, 103, 107, and 915, allows different doors to be planned into keyed-alike sets or left keyed different when separate control is needed, which supports clear keying charts. Master keyed operation on a 5-pin standard, with grand masterkeyed capability available, allows a higher-level key to operate multiple locks so maintenance or management staff can operate groups of doors while individual users retain limited-access keys. The rekeyable set screw cylinder release mechanism lets existing N Series cylinders be swapped so buildings can stay on a single N Series keyway after tenant or staff changes. A standard function that keeps the key removable in both locked and unlocked positions allows users to remove the key immediately after locking or unlocking, which supports straightforward routines in day-to-day door operation.

    Common Questions About This N Series Deadbolt

    What type of cylinder does this deadbolt use?

    The N Series pin tumbler deadbolt uses a solid brass pin tumbler cylinder, which provides a precise key interface within the N Series system for consistent operation across matched locks.

    How long is the cylinder on this Olympus deadbolt?

    The deadbolt cylinder length is 15/16 inch, matching doors designed for this length so the cylinder projects correctly and aligns with related N Series hardware on the same opening.

    Can this N Series deadbolt be master keyed?

    The N Series pin tumbler deadbolt supports master keyed operation as a 5-pin standard, and grand masterkeyed setups are available where projects require tiered access levels.

    What keyway system does this deadbolt use?

    The deadbolt uses an N Series keyway, equivalent to National D4291 4-pin or D4292 5-pin systems, aligning with established N Series keying found on related Olympus locks.

    How is this deadbolt rekeyed on the job?

    The Olympus N Series pin tumbler deadbolt is rekeyable via a set screw cylinder release mechanism, allowing cylinder changes that follow an existing N Series key plan.

    What performance grade does this deadbolt meet?

    The N Series deadbolt passed ANSI/BHMA A156.11 Grade 1 performance requirements, equivalent to E07121(100DR), positioning it for openings where a Grade 1 deadbolt is specified.

    Selecting This N Series Deadbolt For Your Project

    The Olympus N Series pin tumbler deadbolt with 15/16 inch cylinder length, flat black finish, and N Series keyway ties directly into N Series key plans where Grade 1 deadbolt performance is specified. For doors built around the 15/16 inch cylinder standard, this lock aligns cylinder projection and appearance with other flat black hardware so openings share the same key pattern and visual line. Wurth Baer Supply connects this Olympus 100-US1978-KDMK deadbolt to the broader woodworking and hardware range used on commercial and shop-built door projects.

    Bore Diameter (in)
    7/8 in
    Cylinder Length
    15/16 in
    Height (in)
    1-5/8 in
    Keying
    Keyed different / master keyed
    Material Type
    Brass
    Maximum Material Thickness
    7/8 in
    Tumbler Type
    Pin tumbler
    Width (in)
    1-1/4 in
    Color/Finish
    Flat Black
    Manufacturer Series
    N Series
    Product Type
    Deadbolt Lock
    Supplier Pack Size
    10
    Sold In
    1
    Bore Diameter (in)
    7/8 in
    Cylinder Length
    15/16 in
    Height (in)
    1-5/8 in
    Keying
    Keyed different / master keyed
    Material Type
    Brass
    Maximum Material Thickness
    7/8 in
    Tumbler Type
    Pin tumbler
    Width (in)
    1-1/4 in
    Color/Finish
    Flat Black
    Manufacturer Series
    N Series
    Product Type
    Deadbolt Lock
    Supplier Pack Size
    10
    Sold In
    1
    Olympus Lock, Inc.
    $39.24/Each
    Item # OY1001516KDMKD-19 • MFR # 100-US1978-KDMK
    N Series Pin Tumbler Deadbolt Door Lock, Flat Black, Master Keyed/Keyed Different, 15/16" Cylinder Length
    Item# OY1001516KDMKD-19 / MFR Part # 100-US1978-KDMK
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    Each
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    Sold In: 1 Each

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