1/4" stainless steel with stainless steel mandrel pop rivets have a tensile strength up to 2000 lbs.
http://www.crawfordproducts.com/ultragrip.htm Even an aluminum / aluminum rivet is fairly strong at up to 890 lbs. I doubt there is any advantage to using a rivet unless the wall thickness of the mast only allows a couple of full threads to catch. With thinner section sizes a rivet may have more tensile strength. Michael Brown Windburn C&C 30-1 Date: Fri, 29 Jan 2016 17:28:43 -0500 From: wwadjo...@aol.com To: cnc-list@cnc-list.com Subject: Re: Stus-List Boom vanging... Message-ID: <1528f80b523-34b0-1...@webprd-m22.mail.aol.com> Content-Type: text/plain; charset="utf-8" Eric, ? I would be concerned that aluminum pop rivets wouldn't be strong enough.? They may be.? I drilled and tapped for stainless, used antiseize. Have removed one at a time yearly since just to check. All good. Bill Walker CnC 36 Evening Star Pentwater, Mi Sent from AOL Mobile Mail On Friday, January 29, 2016 Eric Frank via CnC-List <cnc-list@cnc-list.com> wrote: Just installing a Garhauer boom vang on Cat?s Paw this winter. ?Do you guys recommend aluminum pop rivets - in case I ever need to remove it? ?In my experience, SS screws tapped into the mast or boom hold fine but are a devil to get out because of electrolysis. ?The pop rivets can just be drilled out. Eric Frank Cat's Paw C&C 35 Mk II Mattapoisett, MA
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