Blog – Seattle's Maple Leaf Locksmith LLC – (206)335-4559

Worn out old mortise lock? Add a deadbolt and a ball catch or a magnet.

Had a customer with a misbehaving Baldwin mortise lock on their houseboat, I told them about Baldwin’s lifetime mechanical warranty and how they could get a replacement for free but they were not the original purchaser of the lock. Rather than buy a replacement for $800-1000, they asked about other options.

These people had a worn out hub so their knob didn’t retract the latch, they could get locked inside or outside. I proposed making sure the Baldwin no longer locked and using a deadbolt above it, using a ballcatch to hold the door shut. You could use a magnet to hold the door shut instead.

The trick was to replace the strike plate (in this case already missing anyway) with a blank plate. Then one can open or shut the door by pulling on the knob. When the door is pulled shut the springloaded ball catch goes into an indent on the doorframe. This was an especially nice solution because the door was a custom made mahogany.

After replacing strike with blank plate and a ball catch, electronic deadbolt added above. Baldwin still looks nice and can be used to open and close the door. This also prevents the need for ugly remodeler or wrap plates to retrofit the mortise lock. It would be a huge shame to put a brass wrap plate on this door.

The new TSA locks are harder to pick

I remember five years ago when somebody told me they had a TSA lock on their luggage to open I would think to myself, “Five minute job.”

A new dimple lock made by Abus for TSA, picked

It turns out there are hard ones, watch out for T06 TSA locks found on expensive luggage. I had one today manufactured by Abus using a dimple configuration. I think it took me fifteen minutes and some sweat. It made me work for my money! This is a good development, the other TSA locks were way too easy to unlock, even a beginner could have picked them open pretty quickly I think. These dimple pins were giving me false sets and were generally a pain with a hook pick and a standard tension wrench.

Before heaping too much praise on Abus, if they manufactured the combination part of this lock the reason I had to unlock the TSA portion was that it broke. I’ve seen the cheap plastic parts of luggage locks break before which is funny to contrast with the luggage locks made 200 years ago by some Swedish blacksmith I unlocked. That was because the key was locked inside, the lock was still working great after 200 years.

Unlocked this awesome Swedish chest. The nails were square head, probably hand forged just like the lock!

Lock Terminology, the “Standard Lock”

Effective communication is difficult, and it becomes even more difficult when we must describe something we don’t understand. People often call me asking about how much this or that service will cost and I respond asking details about what products I will be interacting with. A good example is whether somebody wants me to unlock their door. The cost depends on how difficult it is to unlock the lock or locks that are on the door. What can you tell me about the locks on your door? If it says Medeco it will likely be more difficult and costly than a lock that says Kwikset or Defiant.

More importantly these details allow me to give the customer an accurate cost breakdown. Contrast this with people who are unable to effectively describe their locks. When asked what kind of locks they want rekeyed, fixed, or replaced some people tell me that the lock is “just a standard lock”. There are many different types of standard locks! Deadbolts, doorknobs, levers, cam locks, etc. That is to say, there is no “standard lock”. We’re no better off finding out what your lock is at this point than when the conversation began!

Install August Electronic Lock on Multipoint Trim

For years I have told people that electronic locks are not really made for multipoint lock door preps. Only recently have the manufacturers started offering extremely expensive replacements for their multipoint locks that work with keypads and they are thousands of dollars. There are other silly setups like a Burg Wachter euro cylinder that used some kind of radio and a remote keypad I remember installing five years ago. There have also been many dozens who have asked me to replace their multipoint lock with a keypad they bought at the hardware store but only one of them had me go through with installation after I showed him the problems that would result.

There is another type of electronic lock though, the August deadbolt. It isn’t actually a deadbolt, more of a replacement thumbturn that can be controlled via smartphone. They can be installed to work with American style multipoint locks that have a lazy action tailpiece. It is kind of a hack and you still have to lift up on the handle before locking the august deadbolt but it does work without keys.

The first step is to acknowledge that you will probably void the multipoint lock warranty by bolting an electronic controller onto it. Maybe you will void the August deadbolt’s warranty too although I can’t see how, none of its parts are altered. The following information is actually only written for the entertainment of a very small population of door hardware nerds and is not actually meant to be a guide, if you do anything described herein it is your full responsibility and I recommend putting on a hazmat suit and two condoms and maybe also a covid mask.

The second step is to replace the lazy action tailpiece on the lock cylinder with one that is long enough to go through the door and extend past the interior trim plate. The lock I worked on today had a tailpiece that wasn’t long enough. The first tailpiece from an Ilco key in knob cylinder was longer but not long enough. The GMS kik long lazy action tailpiece was perfect.

Third is to remove the thumbturn from the interior trim plate (because we are planning to use the August deadbolt thumbturn in its place). In most cases these are held on by either a pressed on washer or a snap ring. You can reinstall this later if you decide the electronic lock is a silly idea.

Fourth step is to reinstall the multipoint trim, put the August mounting plate on the interior trim and line up the tailpiece centered in the mounting plate hole. Now mark the through bolt holes by marking the center of these holes but on the multipoint trim. Now drill and tap the holes. I recommend #8/32tpi screws because the heads are flush after install with the August mounting plate.

I found that the #8 machine screw fit in the August mounting plate best.

Now you just screw the August mounting plate on and carry on with the install. It worked great for me. The biggest problem most likely will be trying to explain to people how to lock the door. Using multipoint locks is hard enough for people without the addition of an electronic lock. For many people just the mention of an electronic lock causes their forehead to crease and their eyes to narrow.

I will say though that for regular users of such a door this will be a huge convenience.

Changing the Master Key Without Changing Tenant or User Keys

God forbid the dark day comes when your building’s master key is compromised. Perhaps it was forgotten in a lock, carelessly left on a desk, or was in a stolen purse. However it was lost, somebody has it and they may mean to use it to commit some crime. Hopefully only petty theft, but possibly assault could occur and you might be held liable. But you already know that or you wouldn’t be reading this!

The obvious thing to do aside from getting the master key back from the criminal is to change the master key to a new key without changing any of the tenant keys. Easier said than done! It is possible to do easily in some circumstances, but it may make sense if the tenant keys can’t be changed to deactivate the master key for the building until a later date. Read on for details…

Let’s start off with the perfect scenario (if one forgets about the highly imperfect start to this scenario), where a building uses a master key system that was designed with one or two chambers held constant for tenant keys but the master key is different for that chamber. In this scenario all the locksmith has to do is cut a new key to be designated the master with a different depth that the previous one for that chamber, and change the pins for that chamber. The old master key won’t work for any lock that this is done for.

In my experience this is not likely for most buildings where different locksmiths have come in and rekeyed the locks to work with the master key but haven’t adhered to any system for the building. It is possible there never was a system, or the system was drawn up on a napkin forty years ago and immediately used to blow one’s nose and thrown away. This is one of the times when it becomes obvious why it is great to have and maintain a proper master key system. Following is a more technical explanation for why this is difficult if there was not a chamber held.

Successful masterkeying requires paying attention to many details. Different lock manufacturers have different specifications for what pins can be used in their locks. Some locks, like those manufactured by Sargent, are machined to such tight tolerances that you can use master pins only .020″ thick. These are thin little round pieces of brass that enable one more key to work for each one. Add two of these in a pin stack and you can have two more keys work in that lock cylinder. If you put that same .020″ pin in a Schlage or even worse Kwikset cylinder it will jam up. Not immediately for the Schlage but eventually it will. It will happen almost immediately for the Kwikset lock which typically have very loose tolerances.

In a master key system there are many more rules and limitations based on the angle of the cuts on the key and other boring things I will leave out because I’m not trying to write a book but suffice it to say that if you have a building with say twenty units and everybody’s lock is using the same pins on the first chamber, you can make a new master key work in that chamber but you can’t make the old master key stop working for that chamber because everybody else’s key has the same cut as the master key for that chamber.

Another problem that prevents easily changing the master key is if tenant keys are differing by depths of something other than a standard depth. Master key systems cannot work properly if there are keys that are cut too closely to the master key. Schlage master key systems are supposed to work in increments of .015″, for example, but a master pin can not be less than .030″. If you have a system that isn’t really a system but actually just a hodgepodge of keys that are compatible but not in a system it becomes somewhat difficult to change the master key because in the second chamber all of the tenant keys may be .030″ different from the original master key but all other possible cuts for the master key could be .015″ difference.

To make it even more complicated, if we are being responsible human beings we must consider whether or not the master key might work in these locks even after changing the pins by pulling it out slightly. I subcontracted for another locksmith who controlled the restricted keyway for a customer I was doing this very thing for, we were changing the master key without changing the tenant keys. The new master key that they chose had different depths but unfortunately if you pulled the old master key out a little bit in the locks keyed for the new master key it lifted the pins to the right height. This was partially because some doofus in the past filed some of the plugs which made the cylinders have looser tolerances.

Assuming that your building is like many apartment buildings in Seattle you probably have a hodgepodge of keys not conforming to an actual system. The best I can do for you is measure the depths of all of your keys, make a matrix, and from that figure out the least invasive way to change the master key. It may be possible in a small building to choose a new master key without impacting anybody else. It may be required to change one tenant’s keys in order to keep the master key from working.

I know that this is probably an impenetrable mental puddle of barf to anybody but me or maybe another locksmith or at best a lock enthusiast but hopefully the takeaway is that master key systems depend on rules about how compatible keys are cut and if the tenant keys aren’t all created based on a sensible system like rolling constant, the chances of changing your master key in an existing system without changing at least a few tenant keys can be unlikely.

Lock battery fail – you ought to use AA batteries





Saw this one today, customer bought a house and wanted me to rekey all of their locks, was wondering why the electronic lock didn’t work. I have never seen this in my life. You pulled AA batteries out of it, why would you put noticeably smaller batteries in it? AA and AAA alkaline batteries do actually put out the same amount of voltage at 1.5V but AAA will only last half as long and being shorter might mean that the lock only works intermittently. Those springs are designed to push up against a longer battery. Most locks use AA or 9V batteries. If in doubt it probably says in the battery compartment what kind of battery you are supposed to use!

While on the subject of batteries and locks I should also throw this out there: not all batteries of the same form factor put out the same voltage. A AA battery might put out 1.2 to 1.6V. If the lock requires 4 batteries and is expecting 1.5 volts from all of the batteries but only getting 1.2 it is a voltage drop of over 1V, and it might not be enough for the lock’s motor to turn. Rechargeable batteries don’t usually put out 1.5V, they put out 1.2V, and the lock will not work reliably. Failed electronic locks are one of the top reasons I get called for lockouts. Most devices are still designed for alkaline batteries. Lithium batteries are of different chemistry but put out 1.5V too. Alkaline batteries maintain the correct voltage for longer too, rechargeable batteries will quickly lose voltage. That is fine for a flashlight, it only gets dimmer. For things with integrated circuits and stuff that needs a more regulated voltage it will more likely stop working altogether.

When you change the lock’s batteries keep your eye out for corrosion of the terminals. Rust is obviously bad. If you see a white powder that is probably leaked battery acids which solidify into metal salts. Careful cleaning that stuff, if you scrape it off the spring terminal it could fly in your eye. Vinegar will dissolve it and then you can wipe it up. Don’t go being an idiot and pour vinegar into the battery compartment, apply it with a q-tip or something. A bunch of vinegar sloshing around in the lock will not do the circuit board any favors.

When I got into safe work some years ago I noticed the main thing safe guys like to obsess about is batteries. All locksmiths are obsessed with lubricants and which one is the best, safe guys are very particular about batteries. Brand and expiration date mostly. If you want to watch a safe guy’s head explode call them and say you have a warranty issue about a safe lock they installed and make sure there are dollar store batteries in the keypad and claim that they installed those batteries. They will go Tasmanian Devil on you, frothing at the mouth while sputtering and choking out guttural sounds that might remind you of “Energizer” and “Duracell” as they knock everything down around them like a whirling dervish with crossed wires.

These things also matter to your electronic deadbolt: Duracell batteries with an expiration date several years in the future will last a lot longer than some batteries you found covered with a curious sticky substance and cat hair at the back of the bottom shelf at TJ Maxx.

Repairing a Door Frame, Emergency

Got called out to fix a kicked-in door downtown. It was a wild night with Pres. Biden visiting town, an escaped zebra running around in the mountains and the base level anarchy that occurs in downtown Seattle on any given day. It was no surprise that a Belltown apartment building’s door got kicked in.

The strike plate and a chunk of wood were missing. I could screw it all back in but the zeitgeist dictates that somebody would only kick it in again. I decided to replace the busted out wood with a ninety degree piece of weldable steel (angle iron) and screw it in from the side and the back.

I hope that this will give future would-be door kickers a little more sport. For anybody trying to replicate, 3/4″ angle iron with 3″ screws countersunk from the side and 2″ screws from the back. This will distribute the force of a kick across a much wider area than the small t-strike that was there before.

You have to remove the wood where the steel will go first, then countersink for the screws, drill pilot holes and then sink the screws in. Then cut a hole for the latch. Only cut it big enough for the deadlatch latch to go in, not the button. I don’t have a picture of this but these people made a great picture illustrating this:

Armor Concepts’ Door Armor: A Review

I don’t want to sound like a shill but let’s get this out of the way first: I think the “Jamb Protector” these folks make is probably the best security improvement most people can make if they already have a decent deadbolt and they install it properly. I have been installing these for years, before they were sold in the big box stores. They have kind of a shoddy marketing department but I’m a believer because I’ve seen their products stop breakins and I’ve fixed lots of frame damage after breakins with them. Now, on to the review.

I think most people will buy the “Door Armor Max” set. It comes with the venerable “jamb protector” pictured below which is essentially a 48″ long strike plate. It comes with screws that are longer than 3″. This will spread the force of an attempted breakin across a much wider area than even the best deadbolt strike and I would say that this is the most important piece of the set. This part alone is very good for fixing frame damage after a break-in, especially if the frame was split or even worse if parts of the frame are missing (see bottom of page).

The “Hinge Shield” after install. Force is distributed over a very large amount of wood. To get the door to shut snugly, lip cut off lip strike.
Here is a cup strike that was destroyed by somebody prying open a door with a crowbar. They got in.

The set also comes with some “Door Shields” that slide over the edge of the door. If you mortise these in they will be flush with the edge of the door. If your house is of new construction it may be better not to mortise them in. Many new houses have a quarter inch gap between the door and frame, you want to keep that gap as small as possible. Surface mount everything and all of a sudden the gap will be much smaller.

On that note, there is an important thing to remember with these long screws: if you overtighten them they will actually drag the doorframe over and if you aren’t careful it will pull your door out of alignment and maybe pull your doorframe away from the door edge far enough that it no longer latches! It could also cause your hinges to squeak annoyingly which is a symptom of their coming premature failure. This isn’t discussed in their documentation. I would advise you to get a 5/32″ drill at least 4″ long to drill pilot holes and also a self-centering drill bit. It will make it easier to get the screws flush (as they can be, more on this later) without throwing the doorframe out of alignment.

Moving on to maybe the most interesting part because it is also the least well designed: the “hinge shield”. The idea is good and Armor Concepts is correct that the hinges are a weak point for a lot of doors with only 1/2″ screws. Additionally I cannot say that I could make a better product. What I will point out are the flaws that I see in this product: if installed, they prevent the door from shutting easily because they block the hinge from closing and when the door is forced close bends the hinge and may cause premature failure of that hinge. This is exacerbated by the fact that the screwheads for this product are of a larger diameter than the taper of the holes in the “hinge shield” and so they don’t actually go flush no matter how much you tighten the screw.

It is therefore my recommendation to not use the hinge shield and instead replace the screws in your hinges with 3.5″ deck screws. It may be that Armor Concepts has done some comparisons between doorframes that have inexpensive hinges with long screws and their product with there being some benefit to doors with their product but as somebody who fights doors with bad hinges or improperly hung doors once a week, I cannot bring myself to condone a product that purposefully spreads a hinge.

Speaking of spreading a hinge I didn’t see this in their documentation when I installed one of these sets earlier this week but here’s a tip: if your door is springing open after installing the hinge shield and it is hard to shut the solution is either to mortise your hinges in at an angle so there is space for the hinge shield when the door is shut (hard) or you have to bend your hinge (easy). The easiest way to do that is to take your trusty 5/32″ drill bit from earlier and stick it between the two parts of the hinge right next to the swivel point and shut the door CAREFULLY so you don’t pinch your fingers and also so you don’t overly bend your hinge. It should be done incrementally until there is an acceptable amount of force to shut your door. If you overdo it, the door might sag and drag on the threshold and then you will have to replace your hinge or hire a handyman to fix it. You have to do this on all hinges on the door too if you want the door to remain level. I hope that I communicated how to do this properly but it is probably confusing.

More tips on installing these sets: if you want to properly set up the strike for the latch you will need to cut off the lip of your latch because you can’t install the jamb shield over a lip strike properly. My solution is to cut the lip off the strike and reinstall. That way it will properly position the door against the weatherstripping and set your deadbolt up to work correctly. If you can see daylight through the edge of your door or feel a breeze consider doing this. There is no good way to use the jamb shield on its own to position doors properly for the deadbolt to work smoothly unless you add a ton of weatherstripping in my experience. One elegant way to do it is to have a strike underneath the jamb shield.

If I were to recommend improvements to the manufacturer I would say that the number one improvement would be to make sure that the screw heads are the same size as the countersink in the hinge shield. Second I would say they should include a lipless adjustable strike that will work underneath the jamb shield, especially important in this age of electronic deadbolts. Other than that there isn’t much to be improved! Hats off to Armor Concepts not only for a well-designed product but also for making bank selling it through Lowe’s. I remember maybe five years ago before Lowe’s carried it calling their business number and some guy in his car answered. They probably have a secretary now.

Fix-A-Jamb installed after a break-in where a cup strike failed. The owner told me that the cup strike had prevented numerous attmpted break-ins over the last few years. This may look trashy but it is secure and a lot cheaper than a new door and frame. For back of house where customers won’t see it the owner thought it was acceptable. He also thought saving a couple thousand dollars was acceptable!

Landlord Tenant Laws and Do Not Duplicate Keys

Update: as expected I confirmed that this is hogwash, landlords are not required to use a restricted keyway for rentals. There is nothing in the Washington State RCW’s that mention this requirement. Here is The Residential Landlord Tenant Act.

Today somebody called me asking about restricted keyways for his rental unit. I warned him that I’ve been told that it is not legal to restrict your tenant’s ability to copy keys to their personal unit, though in multi-unit buildings it is perfectly okay and even suggested to use restricted keys for common entry.

To this he appeared to get huffy and told me that laws going through the legislature will require landlords to use restricted keys for all rentals because of the danger that their keys might be used to open other doors and the landlord who originally issued the key could be found liable for damages.

I didn’t laugh out loud at him when he said this, he hung up too quickly. Look for an update to this article in the next few days because I have to make certain by calling the tenants’ rights union where they have free legal advice about such matters. Even without speaking to a lawyer about this I am pretty certain that this is complete and utter hogwash. No doubt this man found a locksmith happy to sell him some expensive Medeco locks and keys for $300 a pop but there is no way that King County or any other legal entity is requiring landlords to use restricted keys.

The most interesting facet of this is that there may be some forum of landlords urging each other to buy high security locks for their tenants. Just because I tend to see the uglier side of landlord-tenant relations where the tenant is a complete basketcase I tend to side with landlords that protections for tenants are too great in Washington State but it’s good for tenants who aren’t total dirtbags to not be abused by landlords who are, and for them it’s good to know that there are resources available for free! They are very knowledgeable and willing to give advice and if they aren’t certain they ask their lawyers and get back to me.

Update: I tried to call the Seattle Tenant Union a few times. I don’t recommend it unless you have a lot of time to waste. I was on hold for no less than three hours waiting to speak to somebody. I dutifully carried my phone around on speaker output while I did about four jobs. It may be that there wasn’t anybody even answering the phone for The Tenant Union that day. I’m sure they do good work but if you know a lawyer just ask them instead.

Where to get antique-y woodscrews

You’re here because you have a pretty nice old antique lock, but successive visits by helpful tradesmen or well-meaning husbands clearing a docket of tasks as beer thirty approaches have filled the holes on your lock’s trim with a motley selection of steel screws, lag bolts, nails, etc. These look like so many small and glinting black eyes against the clean Art Deco lines of your period lock and door. You need to find appropriate screws, whether because the building is on the national historic register/legal obligation or just the sake of your sanity.But where will you find these screws which aren’t sold at Home Depot? Read on, my friend, I have numerous sources for you to order them from and guidance on what to get.

Placeholder for a picture of a mortise lock thumblatch with inappropriate fasteners to come in the future

A bronze slotted flat head countersunk woodscrew from Fair Winds Fasteners

In my opinion one should use the longest screw possible to utilize fresh wood. After 100 years the wood tends to get stripped out of a screw hole. Every time somebody reattaches something to the door with those woodscrews they are going to try to tighten that screw and over time that will tear the fibers of the wood out until there’s nothing left in the hole and the screw will fall out when you shut the door with any force. The situation is even worse now that everybody has impact drivers.

Oval head on top and round or button head on bottom. Use the round head for when the hole it will go in is NOT countersunk, a countersunk screw on a hole that isn’t countersunk looks stupid and is weaker.https://fairwindfasteners.com/collections/silicon-bronze-wood-screws/products/silicon-bronze-wood-screws-6

You can figure out the maximum length of screw for your door by taking a very small diameter drill bit and drilling the center of the hole through all of the wood but not through the other side of the door. Stop when you hit the metal of the lock which will be obvious. Now stick a needle or paperclip in the hole to find out how deep it will go. That is the max length of the screw in the wood you can use. You can add the depth of the hardware mounted with the screw on the door’s surface. So for example, if your hole is 3/4″ and the rose or eschutcheon is 1/8″, you would use a 7/8″ screw although a 3/4″ would be a better choice, it’s horrible to bottom out before the thing you’re screwing in is snug on the door. If you only need four screws get both, they’re only $0.50 each or so.

Try to find aged bronze or antique brass or oil rubbed bronze finish to match your old lock’s patina. Bright brass will look weird and then will rust and look weirder.

Here are some links to places to buy these screws…

Fair Winds Fasteners: Make specialty screws for boats. They take their screws very seriously!

House of Antique Hardware: Maybe the best selection of faux antique hardware of reasonable quality. They have a great selection of replacement screws in many different styles and finishes! This is probably the easiest way to deal with your missing screw issues. These screws are solid brass so correct for the period.

Tacoma Screw: My favorite source for fasteners in the world is Tacoma Screw, who have every kind of strange fastener available often in store. They have a helpful staff and a dog friendly store policy. It appears that they don’t have oil rubbed bronze slotted screws but they can order anything you want and know how to find it. They got me countersunk head pop rivets which is the only fastener aside from slotted oil rubbed bronze finish screws I’ve found they don’t have in stock.

Back to the issue of screws falling out of the door. The diameter of the hole in your door hardware limits the diameter of the screw and the depth of the hole is also a limitation. If there is no wood left behind the hole you can either rotate the rose to a new position and drill new pilot holes or you can fix the hole with something. Please don’t widen the hole in your door hardware. Please don’t use superglue on the screw. Please don’t drill a pilot hole into the mortise cassette. Only pain lies ahead if you go this route.

There are many ways to fix the existing hole. You can drill the hole larger and glue a piece of wood into the hole and screw into that, you can use Woodmate’s Mr. Grip to add material to the hole (be careful, the sharp perforated metal will cut your fingers easily), you can jam a lot of toothpicks into the hole or you can fill with plastic wood and redrill the holes. Another cool option is threaded inserts for wood but these will require getting machine screws of the proper finish and is a whole new can of worms. You would have to order countersunk slotted machine screws in the appropriate finish, threadpitch matching the insert, length and diameter. I have had really good results with threaded inserts for wood. For even better holding power look for tee nuts. They are threaded inserts with additional teeth to prevent unwanted rotation after install. For more information about the difference between the two look here.

Threaded Inserts
Tee Nuts