Eric, I went to McMaster-Carr and found U-bolts I needed. I tried Tessco and a few others, but they did not have large enough for my needs. McMaster-Carr had some nice ones and just what I needed.
I did notice a big price difference in the Stainless-Steel and Hot-Dip Galvanized; 3:1 at the same sites for same item. I am sure for a good reason. I was also in need of a plate for mounting a top mount pipe to the tower. Found nice big one at SitePro1. Even though the pipe is only 1-5/8" the tower leg of 5.25" makes all the hardware expensive. Thanks for the info and site for the U-bolts. 73, ron, n9ee/r >From: Eric Lemmon <[EMAIL PROTECTED]> >Date: 2008/07/13 Sun PM 02:29:12 EDT >To: [email protected] >Subject: RE: RE: [Repeater-Builder] Re: antenna mounting hardware > >Ron, > >Sure, I would go with galvanized all-thread and other hardware, but only if >they were "hot-dip galvanized" which is the standard for hardware used by >electrical utilities. Hot-dip galvanized threaded rod is actually threaded >undersize and then galvanized- the zinc coating increases the diameter by a >small amount. Ordinary galvanized all-thread rod is the more common version >found in some hardware stores and home centers, and has the threading done >after galvanizing. Such rods are extremely prone to corrosion cracks in the >valleys of the thread, since they are bare metal at that location. > >Major communications supply houses like Tessco, Talley, and Hutton carry >mounting hardware for tower applications. > >73, Eric Lemmon WB6FLY > > >-----Original Message----- >From: [email protected] >[mailto:[EMAIL PROTECTED] On Behalf Of Ron Wright >Sent: Sunday, July 13, 2008 11:15 AM >To: [email protected] >Subject: Re: RE: [Repeater-Builder] Re: antenna mounting hardware > >Eric, > >Thanks for the tip on the supplier. I would prefer the galvanized and fixed >hardware for this, but might consider the all-threaded stock. Probably half >dozen/six of the other. > >73, ron, n9ee/r > >>From: Eric Lemmon <[EMAIL PROTECTED] <mailto:wb6fly%40verizon.net> > >>Date: 2008/07/13 Sun PM 12:56:00 EDT >>To: [email protected] ><mailto:Repeater-Builder%40yahoogroups.com> >>Subject: RE: [Repeater-Builder] Re: antenna mounting hardware > >> >>Al and Ron, >> >>I would prefer to use stainless steel threaded rod. washers, and nuts for >>this application. Such materials are readily available from McMaster-Carr >>and other industrial suppliers. For example, a six-foot length of 5/8-11 >>all-thread made of 316 stainless steel costs about $82, and shorter lengths >>are available. McMaster-Carr also sells both round-end and square-end >>stainless-steel U-bolts. You won't find this stuff at your local hardware >>store. More info here: >><www.mcmaster.com> >> >>73, Eric Lemmon WB6FLY >> >> >>-----Original Message----- >>From: [email protected] ><mailto:Repeater-Builder%40yahoogroups.com> >>[mailto:[email protected] ><mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Al Wolfe >>Sent: Saturday, July 12, 2008 10:59 PM >>To: [email protected] ><mailto:Repeater-Builder%40yahoogroups.com> >>Subject: [Repeater-Builder] Re: antenna mounting hardware >> >>Ron, >>I've often used "All-Thread" for U bolts and V bolts, you know, the >>continuously threaded rod often found at the local hardware store. The >>all-thread is easily wrapped around a piece of pipe or angle by putting one > >>end into a vise and inserting the other end part way into a short section >of >> >>3/4" pipe or conduit and bent into shape around a mandrel. One might need >to >> >>apply some heat to the rod if the bending angle is really sharp, but I've >>never had to with the ones I've delt with. >> >>The all-thread comes in many sizes and lengths and is easily cut to size >>with a hacksaw. (Do this only after it is bent to shape and some nuts >>screwed on before cutting!) The V shaped grooves of the all-thread bite >into >> >>the tower leg and don't slip. >> >>Last year I disassembled an AM broadcast skirt antenna that I installed >>in 1975 using hardware held together with the all-thead U bolts I made back > >>then. This was on a tower with four inch diameter legs. The tower was >>rusting from the inside of the legs and needed to be replaced but the 1/2" >>all-thread was still in perfect shape more than thirty years later. >> >>It goes without saying that these bolts need to be kept painted as they >>are bare steel. I used Rustoleum for this. After the first coat they got >>repainted every time we had the tower painted. >> >>Good luck, >>Al, K9SI >> >>> Does anyone know of a source or V-clamps or the like >>> for 5.25" legs??? >> >>> This has to be hardware that will last 20 years and not >>> hose clamps which I have. >>> 73, ron, n9ee/r >> >> > >Ron Wright, N9EE >727-376-6575 >MICRO COMPUTER CONCEPTS >Owner 146.64 repeater Tampa Bay, FL >No tone, all are welcome. > > > Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
