SIGforum
Things with reverse threads..

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https://sigforum.com/eve/forums/a/tpc/f/320601935/m/5010091105

June 04, 2023, 05:59 AM
triggertreat
Things with reverse threads..
On high speed centrifuges it was lefty tighty on the internal bowl parts and righty tighty on the external module parts. Muscle memory made it easy but it was a bitch working normal things off work.



I'm alright it's the rest of the world that's all screwed up!
June 04, 2023, 08:10 AM
shoevb
Toilet flush levers.
June 04, 2023, 08:25 AM
BlackTalonJHP
Circular saw blade retaining nut
June 04, 2023, 08:29 AM
Redleg06
Knock-off hubs on my 1970 MGB; right-hand threads on the left, left-hand threads on the right...rubber mallet in the boot!


"Cedat Fortuna Peritis"
June 04, 2023, 08:30 AM
Jeff Yarchin
Our Motorhome wheels have reverse threads…22.5 inch Alcoa wheels. Good idea to remind the techs when it’s time for new shoes.
June 04, 2023, 08:34 AM
Ranger41
quote:
Originally posted by Chris42:
As far as mower blades, look at the cutting edge - if you were to hammer on the cutting edge, it would make the nut(or bolt) tighter.


On my Hustler zero-turn it is the opposite. I hit a tree root and spun the blade off. I'm guessing it is set up this way to prevent damage in such a situation.


"The world is too dangerous to live in-not because of the people who do evil, but because of the people who sit and let it happen." (Albert Einstein)
June 04, 2023, 09:40 AM
sig operator
Some drill chucks where screws in the center hold them on.
Gas cylinder threads - usually have the corners of the nut cut to denote reverse thread.
June 04, 2023, 09:51 AM
architect
The Lounge occasionally has reverse threads, e.g. "What's the worst thing that ever happened to you?" vs. "What's the best thing that's ever happened to you?" Like threads on machinery, people sometimes turn these the wrong way.
June 04, 2023, 10:26 AM
6guns
quote:
Originally posted by triggertreat:
On high speed centrifuges it was lefty tighty on the internal bowl parts and righty tighty on the external module parts. Muscle memory made it easy but it was a bitch working normal things off work.


I was going mention purifier retaining rings...kind of a specialized field.




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June 04, 2023, 10:35 AM
goose5
Every oxy/acetylene torch setup I've ever used has left handed threads on the fuel side.


_________________________
OH, Bonnie McMurray!
June 04, 2023, 11:18 AM
darthfuster
My USP Tactical has left hand threads. The Mark 23 has right hand threads. I believe this was designed to make me buy two Knights suppressors.



You’re a lying dog-faced pony soldier
June 04, 2023, 11:32 AM
Ripley
String trimmer head




Set the controls for the heart of the Sun.
June 04, 2023, 01:00 PM
arfmel
Sideplate screw on NAA mini revolvers.
June 04, 2023, 01:30 PM
George43
Ejector rod on some S&W revolvers.


A gun in the hand is worth more than ten policemen on the phone.
The American Revolution was carried out by a group of gun toting religious zealots.
June 04, 2023, 01:34 PM
Hamden106
Left threads, right threads. And centrist threads. I have here in my hand a "screw" with threads neither left or right. The thread cuts are rings with no left or right pitch.



SIGnature
NRA Benefactor CMP Pistol Distinguished
June 04, 2023, 01:38 PM
triggertreat
quote:
Originally posted by 6guns:
quote:
Originally posted by triggertreat:
On high speed centrifuges it was lefty tighty on the internal bowl parts and righty tighty on the external module parts. Muscle memory made it easy but it was a bitch working normal things off work.


I was going mention purifier retaining rings...kind of a specialized field.


Yes it is. Do you work in the field?



I'm alright it's the rest of the world that's all screwed up!
June 04, 2023, 01:39 PM
cas
quote:
Originally posted by George43:
Ejector rod on some S&W revolvers.


Starting part way through 1959.
June 04, 2023, 02:09 PM
wrightd
quote:
Originally posted by BlackTalonJHP:
Circular saw blade retaining nut

Excellent. That's a good one to remember.




Lover of the US Constitution
Wile E. Coyote School of DIY Disaster
June 04, 2023, 02:14 PM
wrightd
quote:
Originally posted by Ranger41:
quote:
Originally posted by Chris42:
As far as mower blades, look at the cutting edge - if you were to hammer on the cutting edge, it would make the nut(or bolt) tighter.


On my Hustler zero-turn it is the opposite. I hit a tree root and spun the blade off. I'm guessing it is set up this way to prevent damage in such a situation.

That's extremely interesting. Makes sense for expensive commercial mowers like that. A lot when you think about it. Hitting a stump on a home grade mower is one thing, doing that with a commercial prob a different ball game.




Lover of the US Constitution
Wile E. Coyote School of DIY Disaster
June 04, 2023, 02:18 PM
wrightd
quote:
Originally posted by Hamden106:
Left threads, right threads. And centrist threads. I have here in my hand a "screw" with threads neither left or right. The thread cuts are rings with no left or right pitch.

Made in China ? India ? Hmmmm.




Lover of the US Constitution
Wile E. Coyote School of DIY Disaster