PEEK vs Ceramic Fasteners for Strength & Electrical Resistance

Q:
I am looking for some high tensile strength studs with good electricity resistance. I think zirconia of aluminia material will be suitable but I am open for suggestions. The studs would be about 5 inches long.
A:
Probably ceramics fasteners are not the best choice for this situation. It is true that ceramics have high tensile strength, but they have no yield strength and at this length, a ceramic stud will be quite fragile.
Without knowing anything about your application, I would suggest looking at a fiber reinforced polymers like glass reinforced PEEK fastener. These will be stronger, tougher and much more cost effective. PEEK fasteners also will offer excellent electrical resistance.
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