[TowerTalk] Galling and seizing of SS nuts to SS threaded studs and bolts.
Roger (K8RI) on TT
K8RI-on-TowerTalk at tm.net
Mon Jul 3 05:23:13 EDT 2017
I have, or had? a 12" T handle about a foot long, but there us now a
socket wrench that ratchets available in the big box stored and many
hardware stores. I think the one brand is Cobalt. They seem well made
and have a nice finish.
73, Roger (K8RI)
On 7/2/2017 Sunday 1:53 PM, Jim Thomson wrote:
> Date: Sun, 2 Jul 2017 09:29:36 -0400
> From: "Roger (K8RI) on TT" <K8RI-on-TowerTalk at tm.net>
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] Galling and seizing of SS nuts to SS threaded
> studs and bolts.
> <Easier than that. Just use Never seize
> <SS to SS under tension, or just tight fitting will have the nut bonding
> <to the bolt.
> <With no preventative You have to twist the bolt off. That can be a real
> <knuckle buster with 3/8ths or 1/2". Been there, done that.
> <73, Roger (K8RI)
> ## agreed. I use the never seize made by Loctite corp. Looks like
> silver goop. The deluxe version is called marine grade never seize, also
> made by Loctite corp.
> ## Where I had real bad issues with galling was when using .25-20 SS bolts
> and mating SS NYLOCKS. The slightest nick or ding on either the SS threads
> of either the bolt threads ..or SS Nut threads and they would seize up asap. The nylock
> would bind and gall...and thats b4 the nut was even all the way down. IE: tiny air gap.
> Then I had to cut the bolt off.... behind the SS nylock... on the inboard side, where the gap
> lay...with a 1 inch cut off wheel on a dremel. SS bolts + regular SS nuts.... IE : non nylocks
> have given me zero issues.
> ## My fix for SS these days..is to..chase the threads with a die 1st..on the bolt. And
> ditto with a tap into the SS nylock threads. Once both threads are cleaned up, then apply
> the never seize goop.... onto both bolt threads and Nylock nut threads. End of problem.
> ## absolute bitch to try and run a die on a SS U bolt though. The ..T handle of the die gets in the
> way, since the U bolt is parallel threads ! Best I can come up with is to ditch the T handle..and
> just screw the die onto the SS bolt on both legs of the SS U bolts.
> ## When buying or storing SS hardware, keep them separated, dont allow the SS threads to get
> bashed about. If down at your local hard ware store, examine the SS hardware that u pull out of the
> bins.... b4 you buy anything. Avoid dinged up threads like the plague, or any minor, visible imperfections.
> ## You really should not have to be mucking about with SS hardware up a tower in a lot of cases. The
> SS hardware, like .25-20, for boom splices.... and say 10-24 or 10-32 or 8-32 SS hardware + SS
> nylocks..like if used for ele joint splices.... is all done on the ground..in advance.
> ## If using the double plate scheme... aka.. easy on mount, like F12 uses to mount a boom to the mast, I would use
> galvanized G-5 hardware to mate the 2 x al plates, which requires a total of 5 x bolts + 5 nuts.
> ## I use the DXE jumbo super mast clamps to hold the Vert plate to the mast...and those use armor plated G8
> bolts and nuts etc. Even on the galvanized hardware, I use either never seize.... or penetrox on the threads.
> Jim VE7RF
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