Our spec to our hardware vendor is either Zinc plating or stainless
steel.  Buying cadmium plated screws has been not allowed for at least
the last 10 years at our facility. 

-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Michael McMonagle
Sent: Thursday, August 25, 2005 11:51 AM
To: [log in to unmask]
Subject: Re: [LF] Nuts and Bolts

Lots of inexpensive hardware and metal parts (like those used in
consumer
products) is cad plated, which doesn't sound homogeneous....

Mike McMonagle
Quality Engineer
OYO Geospace
7007 Pinemont Drive
Houston, TX 77040
713-986-8650
 

-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Blair K. Hogg
Sent: Thursday, August 25, 2005 10:24 AM
To: [log in to unmask]
Subject: Re: [LF] Nuts and Bolts

Do any metal formulations commonly used in hardware contain cadmium?

Blair

>>> [log in to unmask] 08/25/05 10:23AM >>>
Can you give a concrete example of a stainless steel that is not
inherently free of "RoHS elements" to the specified limits? Doubtless
you are thinking of hexavalent chromium. But alloyed metals cannot be
said to have any valence; this exists only in compounds. They are also
"homogeneous" (according to the definition), to boot.

Brian

Scott Hoeptner wrote:
> How are different organizations dealing with obtaining compliance for
> hardware "stock" items (ex:  screws, washers, nuts, etc.)?  It seems
> that the vast majority of distributors of mounting hardware buys to
> industry "spec" and cannot ascertain the true source of supply.  For
> example, they seem to take the position that stainless steel is
> inherently free of RoHS elements.  How can it be a safe bet when they
> cannot identify specific manufacturer and chemical makeup?  Any
> thoughts?
>
>
>
> Thanks,
>
> Scott C. Hoeptner
>
> Vice President of Engineering
>
> HME
>
> phone: (858) 535-6036
>
> fax: (858) 535-6019
>
> [log in to unmask] 
>
>

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