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Answer to Question #8624 Submitted to "Ask the Experts"Category: Medical and Dental Equipment/Shielding — Shielding The following question was answered by an expert in the appropriate field: Q
I was wondering about lead screws. I know that when you build a room and they use lead in the walls they also use lead screws for that. If you are hanging things on the walls after sheetrock and it will go through the lead do you need to use lead screws also for that? Thank you for your time.
A
According to NCRP Report No. 147, "… insertion of the nails or screws does not result in significant radiation leaks …" They are referring to fasteners used to install lead-lined drywall; however, it would be the same if you used similar fasteners for things such as hangers. Lead caps are, therefore, not needed. Reference
Answer posted on 29 October 2009. The information and material posted on this Web site is intended as general reference information only. Specific facts and circumstances may alter the concepts and applications of materials and information described herein. The information provided is not a substitute for professional advice and should not be relied upon in the absence of such professional advice specific to whatever facts and circumstances are presented in any given situation. Answers are correct at the time they are posted on the Web site. Be advised that over time, some requirements could change, new data could be made available, or Internet links could change. For answers that have been posted for several months or longer, please check the current status of the posted information prior to using the responses for specific applications.
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