Add $50.00 for FREE shipping
Access Control Type
Door Control
Audible Indicator
Battery Operated
Door Mounted
Lock Control
Outdoor Rated
Water Resistant
User Interface Type
Satin Nickel
Satin Nickel Finish
Ease of Installation
Advanced (Installs > 60 minutes)
Actuator Systems
Other Ways to Shop
In Stock
On Sale
Biometric Deadbolt Lock System Stores Up to 99 Fingerprints
Actuator Systems ACT-NBDB-4SNSM NextBolt Secure-Mount Biometric Deadbolt, Satin Nickel
Actuator Systems ACT-NBDB-4SNSM NextBolt Secure-Mount Biometric Deadbolt, Satin Nickel
Actuator Systems ACT-NBDB-4SNSM NextBolt Secure-Mount Biometric Deadbolt, Satin Nickel
Item# 46654SN
Price: Normally $299.95 
Hot Deal $216.87
Free shipping on orders over $50 - See Details


  • Highest Quality Biometric Lock Available
  • Opens With Just a Touch of your finger
  • Includes the "Secure-Mount" mounting system for addtional bonding strength
  • Add and delete users individually, stores up to 99 users fingerprints
  • Solid Steel Contruction, Impact Alarm Included

Essential Info

The NextBolt NX4 is the latest biometric deadbolt lock from the biometric industry's sales leader Actuator Systems. The NX4 sets the latest standard in innovating advanced lock design and was specifically developed from the ground up for residential homes and small-businesses. Utilizing expert input from locksmiths, security firms and consumers the NextBolt continues to set the standard for quality, reliability and ease of use. Easy to add or delete any user individually and holds up to 99 fingerprints. No more giving out copies of your key or codes. The NextBolt NX4 has a fast enrollment mode for rapidly adding users for situations such as small businesses where more than a few users are necessary.

Never worry about losing or locking your key inside again by using the power of your fingerprint! The Secure Mount Edition adds extra security by adding two additional internal mounting points. The NextBolt NX4 is the most advanced biometric deadbolt available today and is a stylish, rock solid option for securing your home or office using keyless fingerprint recognition technology for fast entry with maximum security. The deadbolt opens in less than a second and includes an Impact Alarm so if someone tries to break in, a high-pitched alarm sounds to alert you and your neighbors and scare off the intruder.

  • Five-pin tumbler re-keyable KW1 keyway
  • Includes three nickel plated brass keys
  • Solid brass cylinder plug
  • One inch brass deadbolt with case-hardened steel roller pin to resist sawing
  • ANSI Grade 2 equivalent deadbolt
  • Completely Weatherproof - Resistant to rain, snow, temperature extremes, humidity and UV
  • Deadbolt is mounted internally through the door using the secure-mount system
  • Compatible with virtually any door
  • Elegant and contemporary appearance
  • Non-Handed - will fit any left or right handed door
  • Up to 99 Users
  • Ability for administrators to delete individual users or all users
  • Fast enrollment mode to quickly add multiple users
  • Solid steel construction
  • Sliding weather cover triggers deadbolt to re-engage for fast locking
  • Includes the Secure-Mount mounting system
  • Battery operation with low battery alert
  • Non-volatile memory will not delete fingerprints even when the batteries expire
  • CE & FCC approved, UL Listed

  • Manuals/Software

    What's Included

    1x - Biometric NextBolt Deadbolt Satin Nickel
    1x - Mounting Hardware
    1x - Installation Guide


    ManufacturerActuator Systems
    Manufacturer Product NoACT-NBDB-4SNSM
    Fingerprint Sensor TypeNew Advanced CMOS Optical
    Number of Users99
    Verification Type1 to N
    Scanning Time<1 Second
    False Acceptance Rate (FAR)<0.0001%
    False Rejection Rate (FRR)<0.01%
    Power Supply4x - AA Alkaline Batteries (not included)
    FinishSatin Nickel
    Operating Temperature -30° to 150°F
    Dimensions6" L x 3" W x 1.4" D
    Door RequirementWood, Metal or Fiberglass
    Manufacturer WarrantyTwo Years Limited

    Important notes:
    Only defective exchanges for identical item within 30 days of purchase. No other returns allowed on this item. For defective returns after 30 days, please contact the manufacturer.


    3 Ratings
    5 star: 67%  (2)
    4 star: 0%  (0)
    3 star: 0%  (0)
    2 star: 0%  (0)
    1 star: 33%  (1)
    Average Customer Rating
    (3 customer ratings)
    Share your thoughts with other customers
    Guyanese Man -- New York   6/21/2013
    I recently recieved this product and had it installed in my backyard door .Ive gotta say the construction is well built ..The convienence and ease of use is so much better than your standard deadbolt.The fingerprint scanner is very precise and there customer support through actuator systems is awesome.You get all your hardware and batteries included in the package and the deadbolt comes with a 2yr warranty.The only downside is the built in alarm system ,It is not very loud so dont expect it to be like your standard house alarm.Other than that you cant ask for more..The person who created the first review below could have recieved a defective unit.I have not noticed any major flaws in the mechanics of the motor nor bent or broken hardware that was included..
    Best Reviewer -- Houston Texas   5/10/2013
    I bought this a few weeks ago and installed it in my preexisting deadbolt hole..It took about 30min to get it up and running correctly..I bought the NX4 Model instead of the NX5 because of all of the above average ratings that it recieved...I have to say that The fit and finish of the product is of high has a metal housing all around..not plastic or polymer.It comes with 4AA batteries and all the necessary equipment needed to complete the installation.The finger print scanner is very precise and works better than my biometric safe..The DVD that comes with it is somewhat helpful but my video playback did not work with the dvd that came with mine..but no worries was simple enough to install without it..The packaging is nicely resembles the box that swarovski crystals are packaged in..My only little complaint i have was all the grease that is packed up inside the front sliding door when you go to access the finger print scanner..but with a little qtip.. i was able to wipe off the excess..I give this a 5 star rating because it was more than i expected for $230 dollars..
    RUTH -- fredericksburg, TX   9/21/2012
    Actuator is incredibly weak when met with any resistance, batteries only last a few days. Bent screws in the box pre-installation.


    Alkaline AA Batteries  Coleman Cable 97125 Moonrays 600mah Nicd Rechargeable Solar Batteries, Aa (4-pack)  La Crosse Technology BC700-CBP Alpha Power Battery Charger   
    Alkaline AA Batteries  Coleman Cable 97125 Moonrays 600mah Nicd Rechargeable Solar Batteries, Aa (4-pack)  La Crosse Technology BC700-CBP Alpha Power Battery Charger   

    Related Items

    Customers Also Bought

    Sign-up for Exclusive Email offers 
    How to Order Track Your Package Shipping Returns Contact Us Customer Service Retail Store
    Getting Started Learning Center FAQ Dealers Customer Testimonials Affiliate Program
    About Us INSTEON Press Awards Employment Guarantees Security & Privacy
    Free Catalog Email Newsletter Forum RSS Site Map
    Have questions? Call us at 800-762-7846 (Mon-Fri 5am-7pm and Sat 6am-3pm PT) or send us a message
    Place your order by 3pm PT for same day shipping
    Copyright 1995-2014 SMARTHOME™
    Verisign Secure Site PayPal Acceptance Mark