Non Conductive Fasteners?

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Original poster: "Jim Mora" <jmora@xxxxxxxxxxx>

Hello All,

Does anyone know of a source for fasteners made of perhaps fiberglass 
or other rigid, non conductive material. Nylon seems sort of flimsy 
for heavy HV conductive blocks, etc. that need isolation and strength 
of attachment. Yet nylon is all I can find locally and with some goggling.

Thanks Much,
Jim Mora