Strut Straps

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jmellc

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Location
Durham, NC
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Facility Maintenance Tech. Licensed Electrician
Small issue in the scheme of things but a constant irritation to me. A lot of strut straps are now universal. Some are sort of OK. Some do well on rigid but won’t tighten down on EMT. This one in the pic barely fit 3/4 rigid. I hate things looking sloppy like that. Sometimes too, I see an odd variation of strut that also complicates things.
 
Depends on the brand strut straps that you're using. The really cheap Chinese knock offs are junk. We only use known brands like Kindorf where there are two different straps for EMT and RMC up to 2". For 2½" and above the straps are all the same size.
 
Depends on the brand strut straps that you're using. The really cheap Chinese knock offs are junk. We only use known brands like Kindorf where there are two different straps for EMT and RMC up to 2". For 2½" and above the straps are all the same size.
Sadly, my purchasing days are over. I have to use what the boss buys. Some come from supply house, some from a big box, some from a general supplier. Purchasing authority is one thing I really miss having.
I don't recall seeing Kindorf brand recently. They were about the only name in strut when I started electrical work in 1976. Then came Unistrut and Super Strut.
 
Sadly, my purchasing days are over. I have to use what the boss buys. Some come from supply house, some from a big box, some from a general supplier. Purchasing authority is one thing I really miss having.
I don't recall seeing Kindorf brand recently. They were about the only name in strut when I started electrical work in 1976. Then came Unistrut and Super Strut.
We had the same issue on a previous project. We were required to use a minority owned (woman) supply house and they only stocked the absolute cheapest junk material that you would buy. The 4" Chinese knock off strut straps were such garbage that they didn't even follow the curve of the EMT. On top of that the screws were too short and you needed three hands to install them. We refused to use them so they got proper straps from a reputable supply house.

It's not just strut straps I've noticed lately that some of the materials we've been getting from the supply house are cheap junk. We just had thousands of EMT connectors where the locknuts were so poorly formed that you couldn't even tighten them.
 
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It's not just strut straps I've noticed lately that some of the materials we've been getting from the supply house are cheap junk. We just had thousands of EMT connectors where the locknuts were so poorly formed that you couldn't even tighten them.
Yeah I noticed a lot of junk EMT fittings. A lot of them the lock nuts are so oversized and flimsy they skip when you try to tighten them down. Drives me crazy especially because these things are UL listed.
 
Small issue in the scheme of things but a constant irritation to me. A lot of strut straps are now universal. Some are sort of OK. Some do well on rigid but won’t tighten down on EMT. This one in the pic barely fit 3/4 rigid. I hate things looking sloppy like that. Sometimes too, I see an odd variation of strut that also complicates things.
Yeah this is definitely an annoyance for me too. Some supply houses I go to only have the universal, but some I can get the proper ones. I actually brought some 1-in rigid only strut clamps back from Seattle with me to use at my house in NY because I couldn't find them here.
 
Yeah I noticed a lot of junk EMT fittings. A lot of them the lock nuts are so oversized and flimsy they skip when you try to tighten them down. Drives me crazy especially because these things are UL listed.
UL is nothing but a racket in my book. I have seen lots of junk with their label. Smaller manufacturers can’t afford their fees and get forced into smaller markets or none at all. The mafia should have it so good.
 
Yeah I noticed a lot of junk EMT fittings. A lot of them the lock nuts are so oversized and flimsy they skip when you try to tighten them down. Drives me crazy especially because these things are UL listed.
Wanted to expand on this a bit, emphasize how picky I am sometimes! Recent job had some two and a half inch EMT fittings that had crappy lock nuts that I couldn't snug down. I ordered some of those nice super thick malleable iron lock nuts off ebay, problem solved. Those things are tight now!
 
UL is nothing but a racket in my book. I have seen lots of junk with their label. Smaller manufacturers can’t afford their fees and get forced into smaller markets or none at all. The mafia should have it so good.
UL listed Zinsco.....
 
Yeah I noticed a lot of junk EMT fittings. A lot of them the lock nuts are so oversized and flimsy they skip when you try to tighten them down. Drives me crazy especially because these things are UL listed.
Yes, locknuts are another issue. I had to use thin ones on my 3/4 rigid runs because thick ones wouldn’t thread far enough.
Worked with some connectors years ago where we mostly used them with threaded fittings. We saved the locknuts for othe uses but they wouldn’t fit other connectors or rigid threads. Threads of the connectors were compatible enough but not for the locknuts. We threw them in the trash.
 
UL listed Zinsco.....
And Federal Pacific. I have also seen various UL approved equipment with non compliant junction boxes and lights with reverse line/neutral terminations. Greenfield flex that should be Sealtight.

.We rest our case.
 
And Federal Pacific. I have also seen various UL approved equipment with non compliant junction boxes and lights with reverse line/neutral terminations. Greenfield flex that should be Sealtight.

.We rest our case.
UL does not "approve" anything, they list it, in all fairness to FPE, to my knowledge, what gave them the black eye was their Stablok panels & breakers, the rest of their product line was fine, but just for grins & giggles, Zinsco/Sylvania used FPE breakers in their panelboards & switchboards for anything over 225A, & everything over 240V.
 
UL does not "approve" anything, they list it,
Maybe just semantics but they do confirm that products meet the product standards, and they write many of the standards. So if I get a EMT fitting that has wonky threads and/or doesnt even tighten enough to get thru the paint before skipping out then they are both not testing the products carefully/frequently enough and have an inadaquate standard. based on what I have seen, i am just not seeing much value in listed products.
 
Maybe just semantics but they do confirm that products meet the product standards, and they write many of the standards. So if I get a EMT fitting that has wonky threads and/or doesnt even tighten enough to get thru the paint before skipping out then they are both not testing the products carefully/frequently enough and have an inadaquate standard. based on what I have seen, i am just not seeing much value in listed products.
Right you are.
 
Maybe just semantics but they do confirm that products meet the product standards, and they write many of the standards. So if I get a EMT fitting that has wonky threads and/or doesnt even tighten enough to get thru the paint before skipping out then they are both not testing the products carefully/frequently enough and have an inadaquate standard. based on what I have seen, i am just not seeing much value in listed products.
If a product is listed, and doesn't meet expected minimum quality expected by the product, you have the option to "report it" to the listing agency as well as the mfg. Perhaps even simultaneously. UL has a reporting mechanism:
 
As professionals in the field, we in essence do product testing everyday as we do installation. The listing agencies are not physically testing each individual item for QC, even a mfg only tests a sampling of a product run for QC, and should be "pulling" a product run prior to shipping for sale. If this is not happening for a particular product the options I mentioned prior are available.
UL is aware of and actively working with other agencies to combat imported "forged" UL listing of subpar products imports. Everyone has some responsibility to combatting these "bad" products by 1) not buying or using, 2) reporting the "bad" product.
The situation we have been in over the last several years has flooded the market with forged or subpar products. Even some products being pushed out onto the shelves for purchase just to try to meet demand with shortages created over the period. Also seems to speak to a general apathy of the mfg employee that QC is not really cared about, even in the trades it is tough getting employees that "care" about workmanship, no pride in the quality of work.
 
American Electric Superstrut universal clamps were really good and did the job they promised. I still have a whole bunch of that stuff in my shop from a large airport project I did in the last century. That manufacturer , who knows if they even exist anymore?
 
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