PEEK Polymer Screws for Sterilization Processes

Q:
I need a fastener that can withstand frequent sterilization processes at temps to around 400F. I would prefer a polymer if possible. Also the process is pharma related, so the screws would need to be non leaching and may be exposed to low concentrations of chemicals. Any ideas?

A:
For your process, I would recommend PEEK screws. They are an economic solution and will meet all your criteria. PEEK fasteners are usable and strong to 500F. They are often used in pharmaceutical processes for their high purity and are approved by the FDA, USDA, NSF and USP Class VI medical grades are available. PEEK is also ideal for sterilization processes as it is able to withstand various processes including high doses of ionizing radiation. It is also hydrolysis resistance meaning it is resistant to water or steam at high temperatures and pressures- which occurs often in sterilization. PEEK fasteners being resistant to many chemical and temperature stable, this would be a good choice.

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