Try
http://www.google.com/search?q=electric+deadbolt+oem

By using electric and oem instead of eletronic, we can weed out most
of the consumer models.

Part of the problem is that you're looking for half of an assembly. 
The electric deadbolts I've seen don't have a mechanical key or knob
option - just a deadbolt that's electrically actuated.  Most of the
electronic locks you can find are custom designed and assembled for
low cost - they don't sell just the deadbolt and mechanical portion
seperately.
http://enforcer.com.tw/burglar/SD997.htm
http://www.bassburglaralarms.com/product_15257_detailed.htm
http://www.alibaba.com/catalog/10645040/Electric_Dead_Bolt.html

You'll find that it's far more common to have an electric strike plate
than an electric lock.  Partly because you don't have to wire the
door, partly because you aren't stuck with one or two styles or
combinations of door handles and deadbolts.

You might also consider a magnetic door latch.  This one requires
about 1,000 lbs of force to open, and fits in the door jamb (unlike
many that are on one side of the door)
http://www.contractorstools.com/securitron_sam_index.html
It likely provides as much protection as a deadbolt, but it requires
4Watts constantly to lock, unlike a deadbolt which (ideally) is
bistable and only requires current to change position.

Most of these solutions are likely to cost mroe than you are hoping. 
You may have to design and manufacture your own solution.  Also, try
to find out which companies are actually designing and manufacturing
consumer models.  Contact them directly - if what you are looking for
exists, it's unlikely to be found on the internet in a nice neat
package ready to go for you.  When you find someone who doesn't have
what you need, ask for references to companies that might have it. 
You'll run into someone eventually, it's just going to be more work
than a simple google search.  Most inexpensive solutions are anyway...

-Adam


On 9/15/05, alan smith <micro_eng2@yahoo.com> wrote:
> I am looking, and actually prefer a china source (lower cost of course) for an door solenoid, running on 12VDC (well....6VDC is preferred but most run 12V I believe).
> 
> Actually one step better would be a an entire lock assembly, including the handle, etc that has it all together.
> 
> Otherwise, just a deadbolt solenoid lock assembly, with the wires hanging out.
> 
> I've googled....but its either seeing the same stuff that wont quite suffice or getting 20 layers deep and finding nothing....
> 
> -Al
> 
> 
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