Unique Security Products and Specialty Locksmith Services

Locks210.com - St Louis Locksmiths for Greater St Louis Missouri
'Securing America - One Door At A Time'314 266 1533
'Keep It Yours... Lock Your Doors!'

October 13, 2020

We Return After Some Setbacks

 The past 3 months have been very challenging for us. We have suffered from financial and mechanical setbacks that almost shut us down forever. We are slowly clawing our way back and working to rebuild after a monumental catastrophe forced us to close our doors for almost 8 weeks, This couldnt have happened at a worse time, considering the country is deep in the throes of a pandemic/health crisis and the false economy on main street vastly differs from the corporate world which has access to government subsidies that many/most small business do not.

We take this opportunity to thank our many clients and colleagues for their faith in us and sticking with us during these unprecedented times. 

We live to serve. It is our passion to provide solutions to your issues and problems surrounding physical security products and door repair needs. Please remember us, next time you have a need to fix that door, repair that lock, service your patio sliding door, install high security key control system. 

We look forward to serving you and making your life and your families lives easier and more pleasured.


Danny Gurvis

July 1, 2020

PullBolt - By D&D Technologies

You may be familiar with D&D Technologies, a rather well known Australian manufacturer of the worlds most sought after gate hinge and superior locking technology specified widely, the world over for securing swimming pool gates, commonly known as the Magnalatch.

Another product that has been a central tenet of the shopfront security market for many years is the PullBolt, expertly produced by D&D and has been available in some countries for many years.

As seen in the video above, the product is very straightforward to install and very strong.


  • 316 Grade Stainless Steel Quality
  • Wont Rust, Corrode or Stain
  • Resistant to Hacksawing or Tampering
  • Fits Left and Right Handed Doors and Gates
  • Face Mount or Side Mount Models available

Key operated and lockable open or shut, this small yet incredibly strong security product offers fabulous security for it's competitive cost.

It can be supplied keyed alike, keyed to differ, master keyed and with the key cylinder removeable, you can replace it with a high security key cylinder from a range of different manufacturers.

I have personally installed a number of these during my 35+ years in the locksmith industry and can attest to their strength and usability, first hand.

Available primarily in Australia, we are trying to become a distributor for this enticing product in North America.

Stay Tuned.


June 2, 2020

Accuride - By Hafele

As a locksmith craftsman (artisan), I believe the trade can be a craft where skilled and trained quality technicians service, manufacture, install and maintain almost anything that opens and closes.

Projects might include residential and commercial doors, cupboards, furniture, safes, cars, trucks, cabinets among other products.

Many consumers need and want better or more advantageous products and methods that contribute to making their lives easier and the Accuride products by Hafele, certainly do just that.

Hafele are quite well known, world wide as one of the leading manufacturers of quality locks, hinges and door and cabinet market products that are unique, easy to operate, install, service and maintain. A great many cabinet makers will swear by their continuing quality across many years.

The product shown here is a range of cabinet hardware where a cabinet door opens and then slides into a pocket to enable a more efficient use of space. The product contributes to better aesthetics (interior design and look), while being not too complicated to install.

The product uses some unique hardware as shown here. With not too many parts, a talented tradesperson can install them in about an hour or two.

There is no reason a DIY'er could also install, provided they have the necessary tools and follow the instructions correctly.

The diagram here displays a breakdown of how the product is attached. It doesnt appear too complicated.

A video of the product and installation is included below.

Available in differing sizes, the product is worth considering to help increase usable living space in a residence or office or hospital or anywhere that quality cabinetry is desired.


May 5, 2020

Contact-Less User Interfaces Are Becoming A Part Of Our New Future - Part 2

The impact that voice-recognition technology is having on our daily lives, is becoming more prevalent, given the current pandemic and quantity of smart-speakers currently available.

The above video we shared in a post we wrote almost a year ago and while it is somewhat comical in it's presentation, it does perhaps highlight a potential future that awaits us.

The article we wrote last year, portends that perhaps there are issues with smart-speaker technology today that we are yet to perfect. Given the current times, I suggest that the uptake of more voice recognition technologies may become an even greater part of our lives, that our article did not recognize at the time.

In March 2018, we also wrote about the integration of Amazon Alexa into new housing constructions in Sydney Australia. Perhaps this kind of technology is not too distant from us any longer?

I'm curious to know other people opinions about this subject.

Contact-Less User Interfaces Are Becoming A Part Of Our New Future - Part 1

As we progress toward a more contact-less future, given the current precarious situation we find ourselves facing, with the pandemic today causing upheaval to our daily lives....

We decided to share a new post to discuss some contact-less options that already exist in today's world and articles that we have written over the last 10 years or so.

Voice control is one area that we have embraced in recent years with the advent of Google Voice, Home, Amazon Alexa, Echo etc among other offerings.

Below find a number of articles that we have written, that provide some interesting reading about some of the options already available to us. Some of the products listed below do not exist anymore but talented researchers are constantly creating new and improved products that might help us progress through this new world...

May 3, 2020

Verroo - Unique Security Products For The Worlds New Normal Amid Coronavirus Pandemic

A couple of years ago (almost), a talented 18 year old gave a lecture at Defcon, a well-known hacker conference held annually in Las Vegas NV.

At this lecture he gave a rather interesting expose into the security and perception of security of Knox Boxes, which are used and required predominantly by fire departments across the USA to allow authorized first responders to gain access to private and public dwellings without the need to employ destructive entry methods.

The video is about 20 minutes long and may be of interest to locksmiths. security industry technicians, sales people, maintenance technicians, first responders, home owners, apartment complex managers, basically anyone who might see or have these type of key boxes on or near their properties.

It is especially interesting when you consider the security offerings by various vendors concerned more with selling you their products as opposed to offering you a system that actually offers to protect and secure your property for real. (For some unscrupulous vendors, it's not about your security protection - it's only about profits)

We have written about some of the subjects he talks about in the video....

Credit Cards Used to Duplicate Keys

Medeco - Hmmmmm...

3D Printers Used To Defeat High Security Key Systems

3D Printed Bump Keys

Further to this conversation is my recently acquired knowledge about an Australian company that is the merge between KJ Ross Security Locks, Marget Engineering and Direct Connections in 2015. That new company is called RMD Innovations (you can see their site in the source below).

KJ Ross, I have personally known for about 35 years now, having worked with their safe lock products, their Rosslinear Battery Operated Electric Strike and other lines in their specialty ranges.

RMD have now created significantly improved products for the high security market that update the older Rosslinear Strike (as seen above) and also have begun offering some additional products including a battery-operated strike for rim locks, panic exit devices. standard mortise and cylindrical entry lock-sets. among other products

I am especially interested in these updated product offerings, given the current predicament the world is experiencing with the Coronavirus Pandemic, that has dramatically altered our states of life.

April 16, 2020

Welcome To Our New Normal - Sanitize - Protect - Clean

The new reality, we face today as a consequence of the worldwide pandemic, forces us all to modify how we conduct business.

As an onsite service company and essential service worker, we find ourselves on the frontline in this new changed environment.

We still require to provide services to our vast range of clients but the new normal requires us to cover up and protect our clients and their dwellings, even more than before.

Wearing a face mask and gloves is part of our new reality, but also being sure to sanitize all surfaces in advance of touching them.... and then after we complete our services is an important and vital act to ensure the safety of our clients and their families and their possessions.

We find ourselves requiring to sanitize constantly, all surfaces including locks, keyholes, door surfaces, walls and other hardware and surfaces in close proximity to the applications we intend to work on. And then again after we complete our tasks.

Carrying spray-on sanitizer and hand sanitizer is a new part of our new normal, a requirement that we take very seriously. We believe that the safety and security of our clients, their staff and customers and especially their loved ones is of paramount importance moving forward.

In the image above you can see me with my face mask on, using surface sanitizer to clean after completing a re-install of door hardware.

We hope and pray that everyone accepts this new responsibility to protect themselves and each other until such a time where personal protections are no longer required.

Since this pandemic and new normal rules have been brought in, we will not perform any works on our customers property without first sanitizing. If the customer requests us to NOT perform these necessary tasks, we will walk away from the project. Your lives and our lives depend on total compliance with our new shared reality.

Thank You!

April 13, 2020

Anti-Bacterial Handle Sets And Door Hardware - Not A New Invention

An article I came across today tries to claim that an American scientific team has invented a new anti-bacterial technique that dissipates harmful pathogens on contact of knobs, levers and other metal door hardware.

As usual, American scientists are very late to the party.

The technology has been around for decades already including the products we have been distributing in North America for most of the last decade.

You can read the article for yourself if you like or simply discover yourself that Anti-Bacterial Hardware has been available by Serrature Meroni for a little over 20 years already.

There are other manufacturers too that also developed the technology eons ago, but this obviously wont stop these American scientists from claiming their supremacy.

We have continued to write articles about the many anti-bacterial products that are already in existence for many years now and continue to educate people everywhere about some of these phenomenal products.

As the North American distributor for all things Meroni, we continue to offer these nouveau products to the North American markets and are seeing some slow uptake of some of these products. The non anti-bacterial hardware, we have installed numerous times for public spaces and also private homes too. The novel designs in the Meroni range are favored when used in high-frequency locations and by physically challenged people too. Arthritis sufferers, who have difficulty gripping and turning door knobs or levers, are quite impressed by the ease in operation of Meroni hardware.

Here are a number of articles we have written over the years about the available Meroni hardware options and also some other articles relevant to the subject. See Anti-Bacterial

Home Advisor (formerly Service Magic) Testimonials And Sites That Recommend Us

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Danny was very professional and friendly at the same time. He not only gave me the quote and fixed the exterior door and explained his work. He was prompt and upfront about the work and did the work. He came in time took care of it on the same day. (Sasheethn K St Louis MO) June 2018d out problems but assured not urgent. Please feel free to have Danny pass out my number for my total experience review 314-351-5553

Charlie M. (St Louis, MO) November 2015

Danny was pleasure to meet and was very knowledgable. He explained several lock replacement options but I decided none of them were a good fit for a storm door, however, I did replace a lock on my entry door with a type of lock I had never seen before. I would highly recommend this company.
Patricia J (Bridgeton, MO) March 2014
They were prompt and showed up when he said he would show up. He knew his stuff. I had ordered new handles and he was honest enough to say that we don't need them that he can fix the doors and he did. Made me lock and unlock my doors to his satisfaction so that I knew what to do. Am very, very pleased with the service and cost.
Joyce K (Glencoe, MO) May 2015

Showed up on time for appointment. Was very knowledgeable about the project and offered a solution beyond what I asked to be done.
Stephen G (Chesterfield, MO) May 2015

Daniel was right on time, assessed the problems I had with two doors, made the repairs, and explained what caused the problems to begin with .... He is a "door expert" and a true professional. I highly recommend him.

Vince V (St. Louis MO) May, 2015

Danny was fabulous! He went over my concerns and he provided me with more than a fair quote. He was there when he said he was going to be there. I would highly recommend Danny. Cheers!
Denise S (Imperial, MO) May 8, 2014

Hired Danny to re-key locks on "new" house purchase. He advised to replace with new deadbolts & door knobs on 3 entry doors instead which I agreed with. All doors have 1 matching key & the safety of excellent quality product & workmanship. He also added new strike plate to door frame to complete project.. I recommend as your 1st & only call to a Locksmith.

Denise F (St. Louis, MO) April 3, 2014

Danny was very helpful in solving a pretty complex problem involving many lock.
Scott C (Eureka, MO) March 27, 2014

Needed patio door track to run smoothly. Arrived early, fixed door and explained what he was doing during repair. Quick and easy. Door works great, my wife will now speak to me, and I've become a better dancer.

Mike W. (Arnold/Oakville MO) July 2013

The owner spent a longtime with me on the phone helping diagnosis the problem. He was on-time, friendly and helped resolve my issue. I will definitely use him again!

Chris C (Lake St Louis, MO) July 2013

I had a very pleasant experience with Master Key Systems. They came out, did the job (which took longer than expected) and they did not change the price they quoted me. Now, I am not certain that it was a great value for the money because I don't have a comparison, but they did what they said, when they said, for the price they said. Enough said!!!

Antonio B (Saint Louis, Missouri) March 2013

Professional.. Upfront about charges. Fixed the sticky door within 20 minutes. I will recommend Master Key for exterior door issues.
Muthu R (Ballwin, MO) July 2012

Danny was a master craftsman, knowledgable and professional. I will be calling on him again in the future as well as passing on his services to friends and family.

Marsha L (Saint Louis, MO) July 2012

Danny was excellent! I called him on a Monday to fix a sliding glass door. He happened to have the exact part we needed (and it was not an easy find - we had looked everywhere) and he came over Tuesday evening. He stayed until 8:00 until the job was done, and cleaned up afterwards. He was courteous, professional, and efficient! I could not be happier!

Rachel P Maryland Heights, MO (July 2012)

He did an excellent job. Got there on time and quickly solved the issue. Was very pleasant and explained the situation and how to keep the door from sticking in the future. Would definitely use Master Key LLC again!

Neil F. (Saint Louis, MO) April 2012

Danny was very friendly and knowledgeable, although his apprentice seemed to do most of the work, Danny kept an eye on him to make sure it was done right. He had very reasonable pricing for re-keying.
Greg D (St Louis, MO) October 2011

He was extrememly fabulous and helpful and did a wonderful job. He was very professional.
Shannon M. (Arnold, MO) October 2011

Growing up spending so much of my time in Italy, the uniqueness of the Nova Classico left quite an impression on me. To be able to have and enjoy them in my own home here in the states is a nostalgic indulgence I'm enjoying beyond words. Thank you Danny for coordinating this transaction.

Joseph M (Chicago, IL) September 2011

great job. hired on the spot and he did job right then at great price

Ron B (Arnold, MO) July 2011

I searched the internet and found your services. I received three phone calls within several days. A service call was scheduled. Two gentlemen arrived promptly, analyzed the problem and fixed it.
James & Florenc M Saint Louis, MO July 2011

The repairman was on time and did an excellent job of fixing a very stubborn door lock. He was persistent and cleaned up the work area afterwards. I would use this service again.

Brenda F (Saint Peters, MO) June 2011

Danny at Master Key Systems has succeeded in making the purchasing of our Meroni door locks, from Italy, an absolute breeze. Even though I live in Australia with a 16hr time difference and was ordering door knobs from Italy that weren't in stock, the whole process was faultless. Danny was prompt and efficient with all his emails and made sure we had covered every possible variable so that the product I received was exactly as required. I would have no hesitation in recommending Danny for your next purchase.
Patrick Carr (Canberra, Australia)

Your product really helped because I needed to secure a nurse's station adjacent to a waiting room and needed a pocket door. Unfortunately, no real options were available to lock a pocket door effectively that would keep me compliant with HIPAA and secure an area that stores medical supplies. This was vitally important as this particular waiting room was for "waiting detox patients". Thank you very much.
Randall R The Fritz Clinic (Birmingham, Al) March 2011

Danny was very polite and knew what the problem was and how to fix it. He also gave me some information about other issues that could arise with my door and locks. Will hire again if I ever need that type of work done.
Jason M Imperial, MO March 2011

I had an exterior basement door that dragged when opening and closing. The hinges were not fitting properly and the door frame had shifted, probably due to the age of the house.The screwswould not go far enough into the wall without hitting stone...even using a special drill bit. Dan worked a long time drilling and sanding to shore up the door as best as possible. I know it will never be perfect. He could have easily sold me a new door and the same issue would happen. He was honest, thorough, and did an excellent job without charging me a fortune. I'm satisfied with the door now. If you want an honest, experienced man, Then Dan is the man

Roger M Saint Louis, MO March 2011

I purchased the Cowdroy P697 Pocket door lock with key over the internet. I emailed questions before my purchase and was provided with the answers quickly by return email. The purchase was quick and easy and the lock was shipped immediatly. Installation is quick and easy. But you do need to convert millimeters to inches (use the internet) in the installation instructions. And the lock looks great and works great. I will do business with them again. THANK YOU

Ed D (February, 2011)

Who Are We?

Welcome to Locks210.com.
This site is to inform about historical and modern approaches to Keys and Physical Security products and services.
Locks210.com, a division of Master Key Systems America LLC, established in 2006, offers residents and businesses of St Louis Locksmith premium quality products and services. As the Premier Bilock Extreme Security Dealer in The Mid-West,
Our conveniently located workshop and service vehicles are uniquely designed to offer trade qualified, bonded, insured tradespeople with knowledge and experience spanning multiple countries and product lines.
Locks210.com offers services tailored to our core operating hours of Monday - Thursday 8am-8pm and Friday 8am-6pm, to help local residents and businesses of the St Louis, Missouri region to find quality lock services at day rates. For service, please call (314) 266-1533 now!

Shipping and Returns

All products are sent in manufacturers condition.
All products are subject to sales tax where applicable.
All products are dispatched within 10 business days of remittance.
All products are subject to manufacturers warranties.
All products returned within 30 days, will be 95% refunded less shipping.
Prices are subject to change without notice.


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