Re: RE: RE: [Repeater-Builder] Re: antenna mounting hardware
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: Repeater-Builder@yahoogroups.com >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: Repeater-Builder@yahoogroups.com >[mailto:[EMAIL PROTECTED] On Behalf Of Ron Wright >Sent: Sunday, July 13, 2008 11:15 AM >To: Repeater-Builder@yahoogroups.com >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: Repeater-Builder@yahoogroups.com ><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: >> >> >>73, Eric Lemmon WB6FLY >> >> >>-Original Message- >>From: Repeater-Builder@yahoogroups.com ><mailto:Repeater-Builder%40yahoogroups.com> >>[mailto:Repeater-Builder@yahoogroups.com ><mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Al Wolfe >>Sent: Saturday, July 12, 2008 10:59 PM >>To: Repeater-Builder@yahoogroups.com ><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. >> >>
RE: RE: [Repeater-Builder] Re: antenna mounting hardware
And, btw, if the rod is threaded after hot dipping, it is by definition cut thread, which is a lot weaker than rolled thread. At 11:29 AM 7/13/2008 -0700, you wrote: 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: <mailto:Repeater-Builder%40yahoogroups.com>Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Ron Wright Sent: Sunday, July 13, 2008 11:15 AM To: <mailto:Repeater-Builder%40yahoogroups.com>Repeater-Builder@yahoogroups.com 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 <<mailto:wb6fly%40verizon.net>[EMAIL PROTECTED] <mailto:wb6fly%40verizon.net> > >Date: 2008/07/13 Sun PM 12:56:00 EDT >To: <mailto:Repeater-Builder%40yahoogroups.com>Repeater-Builder@yahoogroups.com <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: > > >73, Eric Lemmon WB6FLY > > >-Original Message- >From: <mailto:Repeater-Builder%40yahoogroups.com>Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> >[mailto:<mailto:Repeater-Builder%40yahoogroups.com>Repeater-Builder @yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Al Wolfe >Sent: Saturday, July 12, 2008 10:59 PM >To: <mailto:Repeater-Builder%40yahoogroups.com>Repeater-Builder@yahoogroups.com <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.
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: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Ron Wright Sent: Sunday, July 13, 2008 11:15 AM To: Repeater-Builder@yahoogroups.com 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: Repeater-Builder@yahoogroups.com <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: > > >73, Eric Lemmon WB6FLY > > >-Original Message- >From: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> >[mailto:Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Al Wolfe >Sent: Saturday, July 12, 2008 10:59 PM >To: Repeater-Builder@yahoogroups.com <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.
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]> >Date: 2008/07/13 Sun PM 12:56:00 EDT >To: Repeater-Builder@yahoogroups.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: > > >73, Eric Lemmon WB6FLY > > >-Original Message- >From: Repeater-Builder@yahoogroups.com >[mailto:[EMAIL PROTECTED] On Behalf Of Al Wolfe >Sent: Saturday, July 12, 2008 10:59 PM >To: Repeater-Builder@yahoogroups.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.
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: 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Al Wolfe Sent: Saturday, July 12, 2008 10:59 PM To: Repeater-Builder@yahoogroups.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
Re: [Repeater-Builder] Re: antenna mounting hardware
Ditto on the all-thread U Bolts. We had a couple of station master antennas mounted on the side of a smaller tower and the mounting hardware would not work with a new tower due to the large diameter legs. The all-thread U bolts we made fit around the tower leg and back into the existing mounts and worked just fine. 73 - Jim W5ZIT --- On Sun, 7/13/08, Al Wolfe <[EMAIL PROTECTED]> wrote: From: Al Wolfe <[EMAIL PROTECTED]> Subject: [Repeater-Builder] Re: antenna mounting hardware To: Repeater-Builder@yahoogroups.com Date: Sunday, July 13, 2008, 12:59 AM 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 __._,_
Re: [Repeater-Builder] Re: antenna mounting hardware
Al, Yes, I had thought of the threaded bolts. I have some I am going to use, but in a strieght format with half clamp plates. My application is going high on a 5.25" leg tower and need some hardware to secure a top and bottom antenna mount. I found some material at this site for SitePro1: http://www.sitepro1.com/?OVRAW=Bolt%20U&OVKEY=bolt%20u&OVMTC=standard&OVADID=4835093522&OVKWID=42106146522 There prices are good and have lots of heavy hot dipped Galvanized. It seems, like in aircraft, if one goes to a radio comm equipment site the prices near double or sometimes much more. Thanks for the info on the threaded bolts. 73, ron, n9ee/r >From: Al Wolfe <[EMAIL PROTECTED]> >Date: 2008/07/13 Sun AM 01:59:28 EDT >To: Repeater-Builder@yahoogroups.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.
Re: [Repeater-Builder] Re: antenna mounting hardware
skipp, Thanks, I'll take a look. Gotta get this done. 73, ron, n9ee/r >From: skipp025 <[EMAIL PROTECTED]> >Date: 2008/07/12 Sat AM 11:17:04 EDT >To: Repeater-Builder@yahoogroups.com >Subject: [Repeater-Builder] Re: antenna mounting hardware > >> Does anyone know of a source or V-clamps or the like >> for 5.25" legs??? > >Sabre, Microflect and probably Radian. You won't like the >prices regardless of who sells the parts you need. > >cheers, >s. > >> 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.
