Our king pin locks are a solid solution for trailer security and logistics control.  They secure the king pin of semi-tractor trailers
and prevent trailer hookups when parked or in a drop location.  The kingpin locks work on all 5th wheel type pins, including
semi's and travel trailer fifth wheels alike (RV trailers with fifth wheel hitches use the same basic pin as semi-trailers). Our
kingpin locks are casted from ductile steel for maximum strength and resistance.

Our king pin locks prevent unauthorized hookups to fifth-wheel trailers and give you the trailer control and security needed in
today's demanding and changing environments. Look to Carrier Security for all of your trailer security and trailer control needs.
Carrier Security Corporation, All Rights Reserved 2012
The Spot-Flag is constructed from all steel material and is
equipped with an orange safety ribbon (warning flag) .  This
class of kingpin lock commonly sells for between $50 to $65.

The Spot-Flag works to protect your valued cargo.  With trailer
theft on the rise, you have to take trailer security seriously
these days.  The Spot-Flag is based on a simple design that
has been around for several decades.  Because of its proven
technology, rugged construction and ease of use - it is the
kingpin lock of choice for major fleets .

The safety flag makes this king pin lock really stand out.  Just
slide the body over the kingpin and lock the unit in place.  
Powdered coated in safety orange color, two keys per lock.
Spot-Flag King Pin Lock
Price Chart Below - Model #KP1103
Keyed Alike
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Payment Processing
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Trailer theft is on the rise!

Protect your trailers with
our king pin locks!

Distribution Centers are
the No. 1 location for
stolen cargo.  Truck Stops
rank high but not as high
as the DC's and terminal
lots themselves.  

Even terminal areas
considered "secure" are
not enough to stop
thieves...you have to
protect the trailers
themselves - let us help
you reduce your risks.









Theft of lower valued
goods has increased
dramatically in recent
years.

Monthly incidents the most
ever recorded in this past
year alone.

Record breaking number
of thefts reported in 2011.

Trailer theft is on the rise!

Protect your trailers with
our king pin locks!
.
BigRed King Pin Lock
Price Chart Below - Model #KP1005
Keyed Alike
1-3
4-11
12+
$19.95
$16.79
$12.89
Helpful tip to keep your hands clean from grease:

Just slip a plastic grocery sack over the king pin  just before installing the
kingpin lock, this will help stop grease sticking to the kingpin lock after each use.
BigRed is a heavy-duty & high-security rated king pin lock.  
The unit's casted body weighs in at 7 lbs and protects the
high-grade No. 5 lockset incorporated deep inside the unit
itself.  The bottom is secured with a an additional layer of
steel plate to resist drill attacks.  The locking mechanism
cylinder itself can't be pulled out and chiseling under the
steel plate wont work because of countersunk rivets.  

This anti-theft device really stands out with its red colored
powder coating and red safety flag, allowing a driver to see
that it is attached before any hitch occurs.  

Each king pin lock comes with a No. 5 lockset permanently
installed inside the unit.  The No. 5 locking mechanism has
proved it's worth over the many decades - and that is why
BigRed is a high-security winner!  An easy-to-carry handle is
there for your convenience, two keys per lock.
1-4
5-11
12+
$89.95
$86.50
$85.29