RE: Tamper resistant devices for waste drum ring bolts

["Richards, David" <david.richards@rfets.gov>]

A much cheaper alternative that I've seen used many times is to simply tack
weld the head of the bolt to the ring collar. A couple of good tacks by a
good welder makes it essentially impossible to get a wrench on the bolt,
much less break it loose. It doesn't preclude getting the drum open again,
although it does take a little more work and generally will ruin the bolt
and maybe the ring. Still cheaper and quite simple, though.

DJ Richards
Hazards Assessment & Y2k Emergency Preparedness Lead
Rocky Flats Environmental Technology Site
David.Richards@rfets.gov
djrichards@earthlink.net



> -----Original Message-----
> From:	Tom Fox [SMTP:tfox%ucsd.edu@inet.rfets.gov]
> Sent:	Thursday, February 04, 1999 8:06 AM
> To:	Multiple recipients of list
> Subject:	Tamper resistant devices for waste drum ring bolts
> 
> Good morning
> 
> I'm in search of a device designed to disallow the removal of the bolt,
> with only a common wrench, from the closure ring fitted to a 55 gallon
> open
> top steel drum.  I recall seeing such a device that required a special
> tool
> for the removal of a threaded cylindrical sleeve at the end of the bolt.
> I've also seen some with a padlocking mechanism.  Both of these are
> attached to the bolt after it has been secured through the threaded part
> of
> the ring.  Is anyone out there familiar with the use and a source of such
> a
> device?  My office needs to obtain a dozen or so in the near future.  Your
> help is appreciated.
> 
> Thanks
> 
> T.Fox
> UCSD Office of EH&S
> La Jolla CA
> 619-534-1066
> tfox@ucsd.edu
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