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submitted 1 year ago by Grayox@lemmy.ml to c/memes@lemmy.ml
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[-] Badabinski@kbin.social 31 points 1 year ago

I hate righty-tighty lefty-loosy. Depending on whether you're looking at the top or bottom of the screw, you can see movement to the right or the left. I hate whoever came up with it, and I wish I had been taught the right hand method. It works exactly the same as the electromagnetic right hand rule:
an example of the right hand rule as it relates to a screw thread

Basically, you take your right hand, stick your thumb out, and curl your fingers like you're grabbing a broom handle. Point your thumb in the direction you want the screw to move to. Want to screw something in? Point your thumb towards the thing. Want to unscrew? Point your thumb away from the object the screw is currently in. Then, just look at the way your fingers are pointing! If it helps, squeeze your fingers into a fist and see which way they move. Alternatively, bend your wrist in, and observe which way your fingers are moving. Works every time.

It sounds complicated, but there are plenty of people who are unable to intuitively differentiate from right and left the way they can differentiate up and down. I am one of those people. Thanks to this method, I've been able to develop the muscle memory/intuition to know which way to turn a screw.

It's important to note that this only works for screws that are "right hand threaded." If the screw is only getting tighter when you're using this method, then it's likely reverse threaded, or left hand threaded. If that's the case, just use your left hand instead of your right hand.

... Neat.

Alas, most people know which way is left or right. In reality it's more clockwise vs counterclockwise. A good friend of mine needed that hold their left hand up and make an L to remember. Doing it with your right makes a J. Unless you somehow associate Left with Jeft in which case you probably pronounce gif wrong too.

Whichever works for you is great. It doesn't mean mean everyone is ND or has a learning disability.

Clockwise/counterclockwise still depends on which way you are looking at it. Sometimes you have to unscrew things from the other side.

[-] Lath@kbin.social 16 points 1 year ago

Unless you're south of the equator ...

[-] ZagamTheVile@lemmy.world 14 points 1 year ago

Clockwise lockwise. Windershins looser.

[-] dessalines@lemmy.ml 4 points 1 year ago

Never heard that one before, thx.

[-] Rozauhtuno 12 points 1 year ago

La derecha oprime, la izquierda libera.

[-] bruhduh@lemmy.world 11 points 1 year ago

If too much righty tighty then it might become loosy

[-] KreekyBonez@lemmy.world 6 points 1 year ago

"little bolt no good anymore" - maybe don't use caveman strength on an 8mm bolt that holds no weight???

[-] InputZero@lemmy.ml 4 points 1 year ago

Seen it too many times. The biggest guy on the team grabs the biggest wrench he can find for the smallest fastener on the assembly. Maybe the wrench bends, maybe the head snaps, I've seriously considered getting torque limited Allan wrenches.

[-] KreekyBonez@lemmy.world 1 points 1 year ago

I recently had someone complain about a bolt getting hot while they were wrenching it. they created enough friction to notice it heating up. and then kept wrenching it.

also, I've started replacing normal bolts with rounded hand-bolts, which are nearly impossible to over-torque, so long as they don't take a pair of pliers to them.

[-] sirico@feddit.uk 10 points 1 year ago

Torque specs? Keep going right till it gets loose again

[-] TimeSquirrel@kbin.social 10 points 1 year ago

Also, crossthreading = nature's loctite.

[-] KreekyBonez@lemmy.world 2 points 1 year ago

shit, guess I'm replacing the whole thing now

[-] ivanafterall@kbin.social 7 points 1 year ago

I learned it the other way: Lefty Loosy, Righty Tighty. Your version sounds so wrong to me, but I presume mine sounds wrong to you wrong people.

[-] IndiBrony@lemmy.world 6 points 1 year ago
[-] Suburbanl3g3nd@lemmings.world 2 points 1 year ago

Was gonna say that sounds about right for a Ferrari Mechanic 😂

[-] chiliedogg@lemmy.world 5 points 1 year ago

Not on all vehicles.

I broke 2 lug nuts off a Willys Army Jeep I was restoring in High School before I figured that one out.

[-] KreekyBonez@lemmy.world 5 points 1 year ago

just watched a sadly hilarious video of a mechanic struggle with reverse threads on highly specific rotating assembly. like, I get it, it's not immediately obvious, but edit that wrong turn out if you want to make a serious explainer series. also, if you work with pivots that often, you have to expect that shit.

[-] ShadowAndFlame@mander.xyz 3 points 1 year ago
[-] CaptainPedantic@lemmy.world 2 points 1 year ago

Hell yeah. Though, I do get strange looks when I'm giving a thumbs up or down to an inanimate object...

[-] tryptaminev@feddit.de 3 points 1 year ago* (last edited 1 year ago)

Shouldn't it be the exact opposite way for this wheel? From the closeness to the wall this should be the left rear wheel of the car. In order to prevent the bolts from unscrewing them self they should be a left thread on the left side of the car.

the left pedal of a bycycle also has a left thread instead of a right thread to avoid that from happening.

[-] 8bittech@lemmy.world 7 points 1 year ago

Only if it's attached with one bolt in the center.

[-] JJROKCZ@lemmy.world 3 points 1 year ago

They better remember this when they’re doing Lewis’s wheels next year!

[-] Siegfried@lemmy.world 2 points 1 year ago

👍right hand rule master race

[-] tdawg@lemmy.world 2 points 1 year ago

Still remember the day my grandfather taught me this

[-] Grass@sh.itjust.works 2 points 1 year ago

Righty tooty lefty loopey, except after c

[-] DmMacniel@feddit.de 5 points 1 year ago

Huh? It doesn't matter if a right-winded thread is imperial or metric, its right winded.

[-] Tarkcanis@lemmy.world 1 points 1 year ago

Yeah... there's a lot of reverse threaded stuff at my work.

this post was submitted on 31 Jan 2024
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