[TowerTalk] Fwd: Rohn Bolts AND nuts - won't mate

[Hans Hammarquist]

Jim.


I guess we see the same development as we saw around 1950 - 60 when the Japanese products were coming to the market. Same lack of QA with disastrous result. Eventually the Chinese will learn and we will get good products all over the line from there too. In the mean time the US industries can catch up and regain the market they lost due to various circumstances. (No political discussions here, please!)


Best 73 de,


Hans - N2JFS



-----Original Message-----
From: Jim Thomson <jim.thom at telus.net>
To: towertalk <towertalk at contesting.com>
Sent: Fri, Jan 29, 2016 4:48 am
Subject: [TowerTalk] Rohn Bolts AND nuts - won't mate

Date: Thu, 28 Jan 2016 11:12:13 -0500From: Hans Hammarquist <hanslg at aol.com>To: towertalk at contesting.comSubject: [TowerTalk] Fwd:  Rohn Bolts AND nuts - won't mateIs this just an other example of the Chinese lack of quality assurance? 


I have seen mane examples of that in the past.It appears to me that the "pimples" are made too deep.I find Rohn's answer despicable. They should just send you a new set of nuts, nuts that they checked against their own specifications.Hans – N2JFS 


 ##  Even Portland Bolt buys  Chinese imported nuts + bolts.  Some of it is  good, and some is junk.  On a similar note, locally we are havingone of our 100 year old bridges replaced.  Turning into a real gong show.  Main contractor just finished building a new bridge in VE3 land, which ended up getting shut down for several days, bad expansion joints...in the middle of winter.   No alternate path either, so the trans canadagets  cut off...... totally un acceptable.  Same contactor is building our new bridge downtown. His sub contractor decides to buy steel, and nuts and boltsfrom china.  This has turned into a real disaster, with huge cost overuns, and junk material. The latest is... you cant even weld to it !!    WTF. Dunno what alloythey are using, buts its not even close to what was originally speced.  Huge sections of it have had to be torn down and new replacement steel is no where in site.New bridge is not expected to be  functioning till late 2019, way behind schedule. 


 ##   Meanwhile, the head of the Canadian steel manufacturing, that represents all the various steel manufacturers in VE3 land  comes on TV...and sez....  told ya so. cdn steel makers could have easily supplied the correct steel, on time,and on budget.But local city hall folks wanted to save 50 cents, and went to the lowest bidder.   So far, we have saved nothing, and will be in the hole when all is said and done.Then to top it all off, the main contractor appears to have no clue as to how to build a new bridge in the 1st place. 


 ##  I had the 12 x 60 inch long x 1.125 inch diam anchor bolts for my HDX-689 custom made by portland bolt, they were manufactured in their portland plant,to my specs, with a 6 inch thread on each end of each rod...and are 103 ksi yield strength.   The various heavy duty nuts, washers, bolts etc, are also made in theirplant. Including the 18 x 1 inch x 3 inch long bolts for the legs, with correct length shank. 


 ##  when u see dimples done wrong, excess galvanizing, threads done wrong, dont fight with it, replace the entire mess.   And avoid chinese made brake rotors like theplague, they come warped right out of the box, or will warp shortly afterwards.   Their calipers are junk as well.   Im lucky I avoided that gong show, and bought reputableaftermarket brands.  Those pal nuts that came with my  rohn  TB-4  bearings  were nothing to right home about, and neither were the bolts that came with them.  The 3 x boltsthat are mounted transverse, and every 120 degs  were more junk.  Mine rusted and seized up asap, sri, not impressed.   Jim   VE7RF  ______________________________________________________________________________________________TowerTalk mailing listTowerTalk at contesting.comhttp://lists.contesting.com/mailman/listinfo/towertalk