Exciting New Fastener Technology
Introducing SCHIRR-LOCK Technology

This Remarkable Technology ALLOWS THREADING
On BOTH the SEATING and APPROACH areas of any externally DAMAGED threaded rod or bolt.
NOW DAMAGED SEATING SURFACES ARE A THING OF THE PAST
The Schirr-Lock Technology  Allows Both THREADING on a DAMAGED Seating Surface Area
and
Sliding Past and Over a DAMAGED Surface Area to the Seating Surface

SCHIRR-LOCK SAVES TIME & MONEY
Watch The SCHIRR-LOCK Video
Best results with DSL/Cable Connection

Let's first look at the 'normal' relationship between a nut and a bolt.
Most nuts are designed for approximately a 50% thread engagement to enable them
to be easily twisted onto a bolt by hand.
Once the nut is 'snugged' down by hand a wrench or other tool
is used to apply additional torque to it make it tight.
As the nut is tightened onto the mating bolt it will dilate and reduce the thread engagement
to as low as 30% on some low grade bolt/nut combinations.
The nut or the bolt will fail via stripping and may require a nut splitter
or a saw to cut it off.  Both then have to be replaced.

Proper use of the above application is predicated upon good clean threads and a reasonably straight bolt.
If the threads on the bolt have been damaged then the bolt has to
be either replaced or the threads have to be 'chased' (repaired).
This can be a very time consuming project or an impossible project, either is a costly operation.

Would You Guarantee Your Product To Start On These Threads ?

The Schirr-Lock nut, like its cousin, the standard nut starts out at 50% thread engagement.
It is important to note that unlike its cousins, it doesn't care if the threads have been damaged,
or even if a bend of up to 15 degrees exists in the bolt.
It will slide past damage & bend to the seating surface and within a 1/4 turn is snug.
Also unlike its cousins it has a footprint that allows it to be used without a washer.

Preliminary testing indicates that it loves vibration.
Instead of coming loose, it gets tighter.
This could eliminate the need for messy locking compounds that
may cause an outgassing concern in your application.

Everyone that sees what this nut can do comes up with a new use for it.
It has already been used on 'can't twist' clamps in the inventors machine shop. 
Just this week it was discovered that it was highly adaptable to clamps
used on molds in injection molding.

It has been found to have many applications in the construction and marine industry.
Discussions with contractors as to how much such a nut would be worth to them,
their answer depended on their wage scale and the problem/s currently being experienced.

Additional differences between the Schirr-Lock nut and a standard nut
become obvious as torque is applied to tighten it.
It has the same recommended seating torques as its cousin of comparable size
but instead of decreasing thread engagement with increased torque,
it has been documented that when manufactured out of 303 stainless
it can achieve 130% thread engagement on a grade 8 bolt.

Of course, the bolt is worthless at that point and dangerously weakened
due to the reduced cross-sectional area.

However, the remarkable point of this study was that
the nut could be reused when the inserts were cleaned !

When used as a lug nut it increases the safety factor by 200% -300%.
This was demonstrated by removing the standard lug nut from a 3/4 ton custom conversion van,
securing the wheel with five Schirr-Lock lug nuts tightened by hand and driving it on the LA freeway
at speeds up to 90 MPH.
It was then brought back into the lab and removal torque measured.
The results were startling ! 
Nuts that had been placed on by hand, no lug wrench used,
just as tight as possible with the human hand, required 30Lbft - 55Lbft to remove.
Typically a standard nut can be removed with approximately 50% - 60% of the torque used to tighten it.

The Schirr-Lock nut has many persons in the marine industry rethinking turn-buckles on sailing rigging.

Do you have an application that you would like to try this nut on ? 
It can be made of many different materials, especially for highly corrosive applications.

Contact us if you would like to try some for your application,
order a demo video of the Schirr-Lock nut,
or just to discuss your fastener problems.

Solve Your Fastener Problem With This
New Fastener Technology

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