Deadbolt security

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Most everyone feels safe inside their own home. It is a sanctuary
away from the outside world. However, there are so many thieves and
burglars who would rob us of what we have worked so hard to acquire.
That is why the door knob lock was invented, to keep out intruders.
Eventually, though, they found a way to defeat it. Then the deadbolt
was invented and it was much more difficult to break in. The
deadbolt, however, is no longer as safe as it once was. Lock picks
and other devices allow others to defeat your deadbolt lock. And now
some enterprising fellow has developed what is called a "bump key".
It allows someone who is proficient with its use to open your deadbolt
lock almost as fast as you can with your own key. You may not be
aware that a high percentage of home intrusions/burgularies occur at
night AND while people are at home. So, a way was needed to provide
protection from these methods of intrusion. The "Super Grip Lock" was
developed for exactly that purpose. It is a very simple device and
inexpensive as well. The "Super Grip Lock" wraps around the inside of
the deadbolt and then around the door knob. This connects the deadbolt
and the doorknob together as one and prevents the deadbolt from being
opened by anyone no matter what kind of device or key they may have.
Police departments and locksmiths everywhere recommend the use of the
"Super Grip Lock". Photos are available via e-mail to show how the
"Super Grip Lock" is used. Help protect yourself and your family from
home intrusion.

The "SuperGrip Lock" sells for $9.95 plus shipping and handling;
$2.95 for 1 - 5 "Super Grip Locks
3.95 for 6-10 "
4.95 for 11-20 "
FREE 21 or more "

To order this excellent addition to your home security go to PayPal
and type in [email protected] and Transfer funds using your Visa
or MasterCard. Your "Super Grip Locks" will be on their way in 1-3
business days. If you have any questions we can be contacted via the
e-mail address above.. Thank you and may you and your family always
be safe.nommel

 

[Shaun Eli]

"This connects the deadbolt and the doorknob together as one and
prevents the deadbolt from being
opened by anyone no matter what kind of device or key they may have."

THEN HOW DO I GET OUT?

 

[Jim]

"This connects the deadbolt and the doorknob together as one and
prevents the deadbolt from being
opened by anyone no matter what kind of device or key they may have."

THEN HOW DO I GET OUT?

You don't want to get out.


There may be someone out there, trying to get in!

 

[tourman]

You don't want to get out.

There may be someone out there, trying to get in!

RHC: I hesitated to reply to this thread since it was either a troll,
or someone hawking his wares on the newsgroup. However, given his
pricing, it appears he may just be a troll. As a locksmith myself, I
have heard a lot about this way of defeating conventional locks, but
didn't see a need to discuss this in any way since it really is not a
major concern to anyone with decent locks. "Bumping" as it has become
known is simply an amateurish way to go about picking a lock using one
of three established ways of doing so, and I'm not going to go into it
any further for obvious reasons.

Most manufacturers today use special rounded top pins in their locks
which resist this way of defeating them, forcing locksmiths to use
different techniques. There are certain other conditions that are
normally present in a lock which automatically prevent this sort of
violation and they too will remain off the newsgroup. But bottom
line, this "bumping" would likely work only rarely on any decent
deadbolt, and although much is being made of it, it is not something
that a consumer has to unduly worry about. No doubt many people are
also being sold overpriced "high security" locks as a way to
circumvent this remote possiblity (a VERY high priced and largely
unnecessary precaution on it's own for most residential homes)

This device seems to be some sort of plastic cover arrangement
preventing the deadbolt from being turned from the outside. In the
vast majority of homes, the strike is the weakest part of the door /
locking "system" and will quickly give way to a healthy kick from the
outside ( in our area, this is how about 90% of the breakins
occur....) Most homeowners would be far better off simply replacing
the existing strike with a long one, solidly held into the jackstuds
of the home with six three inch screws, vastly preventing the normal
way of breaking into a home. Or add it to the inside of the door
frame, with the screws perpendicular to the door, where the frame is
weak next to a tall glass window. Add to that a metal " wraparound "
plate for the lock itself in the door, and your locking "system" is
even more likely NOT to be violated. For those who still feel they
need extra protection against intrusion while they are at home, there
are all sorts of bar blocks that run from the handle to the floor,
preventing the door from being kicked in even when the door is
unlocked....more expensive for sure, but also more effective than this
device could ever hope to be (especially if the strike has not been
reinforced).

This device might be genuinely useful in residential apartments where
there is poor key control being exercised by the building owner. And
since a lot of modern apartments have steel frames, there is little
danger of "kick in" attacks due to the strength of the frame and the
presence of nearby neighbours.

I guess like in every market, someone feels he has invented a better
"mousetrap" and hopes to sell it. I am certainly not someone who wants
to "rain on his parade", but from a realistic point of view, this
device has limited value in the larger methodology of properly
securing a home......IMO.....)

My website has a large amount of information on how to physically
secure your home if you care to read further.....www.homemetal.com. To
use a term that is not well liked on this newsgroup...it ain't "rocket
science"...)

 

[Frank Olson]

RHC: I hesitated to reply to this thread since it was either a troll,
or someone hawking his wares on the newsgroup. However, given his
pricing, it appears he may just be a troll. As a locksmith myself, I
have heard a lot about this way of defeating conventional locks, but
didn't see a need to discuss this in any way since it really is not a
major concern to anyone with decent locks. "Bumping" as it has become
known is simply an amateurish way to go about picking a lock using one
of three established ways of doing so, and I'm not going to go into it
any further for obvious reasons.

I'd like to see someone try a "bump key" on our deadbolts. And I don't
think it's possible to pick a Mul-T-Lock.

 

[tourman]

I'd like to see someone try a "bump key" on our deadbolts.  And I don't
think it's possible to pick a Mul-T-Lock.

RHC: No, the Mul-T-Lock is considered a high security lock along with
a variety of others such as Assa, Abloy and Medeco. These locks are
pretty much impervious to any form of picking (including this silly
amateur "bumping" technique). They are also armoured against drilling
the keyway, and usually have a much heavier deadbolt, often with an
internal roller to prevent a sawing attack. Most important, they come
with a heavy duty strike that makes kickin of the door frame not
impossible, but very difficult.

IMO these are massive overkill for the AVERAGE residential home (with
some exceptions). They provide a very high level of profit for the
locksmith, and force the client to come back to the a locksmith for
VERY expensive and restricted duplicate keys. The one good thing they
do for the client is give him excellent key control. In commercial
applications, frankly, every lock should be one of these high security
locks, not only for the key control, but for the true extra physical
strength of the device.

But just like in the electronic security business, not everyone is
willing to pay for a proper level of security......(count how
successull Alarm Force is being as an obvious example...)

 

[Jim]

RHC: No, the Mul-T-Lock is considered a high security lock along with
a variety of others such as Assa, Abloy and Medeco. These locks are
pretty much impervious to any form of picking (including this silly
amateur "bumping" technique). They are also armoured against drilling
the keyway, and usually have a much heavier deadbolt, often with an
internal roller to prevent a sawing attack. Most important, they come
with a heavy duty strike that makes kickin of the door frame not
impossible, but very difficult.

IMO these are massive overkill for the AVERAGE residential home (with
some exceptions). They provide a very high level of profit for the
locksmith, and force the client to come back to the a locksmith for
VERY expensive and restricted duplicate keys. The one good thing they
do for the client is give him excellent key control. In commercial
applications, frankly, every lock should be one of these high security
locks, not only for the key control, but for the true extra physical
strength of the device.

But just like in the electronic security business, not everyone is
willing to pay for a proper level of security......(count how
successull Alarm Force is being as an obvious example...)-

It seems to me, regardless of the kind of deadbolt you can buy at the
general sources (Home Depot, etc) they all depend upon the little bit
of wood in the jamb, between the strike and the inside edge of the
door frame.

I bought two Schlage deep throw dead bolts for my front and back
doors. Had some scrap 1/4 inch plate steel. Cut a piece about 8 inches
long and just wide enough to fit between the frame of the door and the
abuting 2x4. Cut out a hole large enough to allow the bolt to pass
though, plus 4 holes on each corner of the plate. Slipped the plate
between the door frame and the 2x4 and with a little shimming to keep
it tight, used four 3 1/2 inch flat head screws through the frame into
2x4 to mount it.

I'm surprised someone hasn't thought of putting something like this on
the market. Or .... maybe they have and I just haven't seen it.

 

[Doug]

I'd like to see someone try a "bump key" on our deadbolts. And I don't
think it's possible to pick a Mul-T-Lock.

There are some people on youtube who might disagree with that Frank.
Search youtube for Mul-T-Lock, of course many of the videos may be faked.
but I suspect that some of them are real.

Doug

 

[Doug]

RHC: No, the Mul-T-Lock is considered a high security lock along with
a variety of others such as Assa, Abloy and Medeco. These locks are
pretty much impervious to any form of picking (including this silly
amateur "bumping" technique).

"Bumping" may be amateurish, the same could be said about cutting phone
lines, but unfortunately it appears to work in many cases.

In the past a certain degree of skill was required to pick a lock,
apparently
that isn't so anymore.

Doug

 

[tourman]

It seems to me, regardless of the kind of deadbolt you can buy at the
general sources (Home Depot, etc) they all depend upon the little bit
of wood in the jamb, between the strike and the inside edge of the
door frame.

I bought two Schlage deep throw dead bolts for my front and back
doors. Had some scrap 1/4 inch plate steel. Cut a piece about 8 inches
long and just wide enough to fit between the frame of the door and the
abuting 2x4. Cut out a hole large enough to allow the bolt to pass
though, plus 4 holes on each corner of the plate. Slipped the plate
between the door frame and the 2x4 and with a little shimming to keep
it tight, used four 3 1/2 inch flat head screws through the frame into
2x4 to mount it.

I'm surprised someone hasn't thought of putting something like this on
the market. Or .... maybe they have and I just haven't seen it.

RHC: What you have just described is one form of heavy duty strike
plate. These are available in different forms, lengths and screw
dimensions for a few dollars at locksmithing stores and locksmith
supply houses, in different materials including fancy brass. I make
them up in my machine shop out of 3/16th inch flat steel, 10 to 12
inches long and 1and a quarter inches wide and install one with every
deadbolt I install for customers. The hole for the deadbolt is milled
on a milling machine to ensure a smooth, elongated hole with no sharp,
stressed edges. I would far rather see a $40 lock and a decent 10
inch strike on a door than a $150 high security lock with a standard 2
inch strike....the former would be far more secure against the type of
thief that typically breaks into home (at least in our area anyway).
In extreme situations, I remove the inside moulding on the door frame
between the floor to ceiling length window and the door, then mount a
floor to ceiling piece of 1/4 inch thick steel with 6 inch screws
every few inches or so, then remount the moulding using contact
cement. A touch of paint and it's totally invisible. This REALLY
makes that otherwise weak frame quite strong. Over the last 35 years,
I have probably manufactured and installed 4 ot 5000 of these along
with the deadbolts, and as far as I know, I've never had a door kicked
in....a few heavily damaged, but none actually bypassed.

Same old rules apply here; security is only as good as the weakest
link, and as you say, the door jamb is always the weakest link...

 

[tourman]

"Bumping" may be amateurish, the same could be said about cutting phone
lines, but unfortunately it appears to work in many cases.

In the past a certain degree of skill was required to pick a lock,
apparently
that isn't so anymore.

Doug

RHC: My guess would be that the success rate of this "bumping"
business is highly overblown. Lock picking IS a skill, and one you
lose quite quickly unless you practice continually...it's all about
the "feel" of the internal mechanism as you work, and you lose this
unless you practice the different techniques. Lockpicking is not so
much about entering through locked doors as it is the ability to
service locks when no key is available to open them up for rekeying or
repair.

I'm not saying it doesn't happen when some of the more enterprising
types turn to crime, but I very much doubt that the average thief
would take the time to learn how to open most locks.....most amateur
thieves are lazy and stupid..that's why they are thieves. A more
"professional" level of thief...yeah for sure.....but then alarms
don't stop them either !

 

[Frank Olson]

There are some people on youtube who might disagree with that Frank.
Search youtube for Mul-T-Lock, of course many of the videos may be faked.
but I suspect that some of them are real.

Doug

The videos were certainly "eye opening". I noticed that the device used
for the Mul-T-Lock is somewhat unusual. Not something your "run of the
mill" thief would bother getting. We did have an attempted break-in at
the side of the house about three months ago. I think the guy broke his
foot trying to kick the door in. He was limping badly as he made his
way back to his Nissan Sentra. The neighbour's camera picked up his
license plate (an unexpected bonus because of where he decided to park)
and we've got clean footage of the attempt from the newly upgraded
colour dome mounted adjacent to the door. Dumb-ass.