Castle Nuts - How to Install or Fit a Cotter Pin and Slotted Nut | Fasteners 101
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- Опубліковано 12 бер 2017
- In this video, one of our resident fastener specialists talks about castle nuts. Bob both explains and demonstrates how castle nuts are used alongside cotter pins to secure connections from loosening.
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thx dude
this was really helpful for my Technical Drawing Exam
I had to find a method to prevent the loosening of a bolt and draw it
so again..... THANK YOU!!!!!!!!!!!!!!!!!!!!!!
You're most welcome! Thank you for your feedback.
In another film a gentleman said the correct way to put a cotter pin is a longer leg up, then, after the torquing and alignment, that longer leg is bent over the end of the bolt, the shorter one is left how it is, unbent. I understand it is not so important, will work any way, but good to know the exactly correct method. Pls could you tell what are advantages and cons of the different methods:
1) bending horizontally (how it is done in this film)
2) bending vertically (sometimes only one leg)
3) bending horizontally 2 legs together
4) bending vertically 2 legs together
Thank you for the informative film.
Very clear explanation. Thank you!
Exactly the answers I was seeking. Clear and concise! Thank you!!
Thanks! I needed this info (y)
Some additional stability could be gained but using a second nut below the castle nut. Tighten the two together and they should not move. Loosen and remove the bottom nut when done drilling.
Super awesome video!
Thank you for your feedback!
Thanks for sharing.
Hi Dirt Road Warrior, here is a link to the rivet tool www.albanycountyfasteners.com/Rivet-Gauge-p/1050-202.htm
Hi, it is much better to drill vertically, place the bolt with a nut horizontally in a vice, after installing the cotter pin, shorten it so that it ends at the first slot😊
May I ask your opinion about cotter pins (size 1/8 X 1-1/2) grade 5.0 for cars? It is much easier to work with them than with stainless cotter pins. But are they reliable for a small passenger car (2003 Chevrolet Cavalier), not a truck? In the set of ball joints I bought the hole in one of them drilled perpendicular to the plane of the steering knuckle, so when you install the cotter pin it hits the knuckle and to put it in you need to push and slightly bend both ends, push and bend again until it sets in the hole. Thank you for a great film.
Thanks!
So much thanks
You're welcome! Thank you for the feedback!
THANK YOU.
You're welcome! Thank you for your feedback.
Was that one of those spring loaded punches you just push on?
Wow somebody Who actually showed how it goes
Thank you for your feedback!
Is there a correct name for the bolts that come with a hole already drilled? Also, I'm wondering how you would get the notches in a castle nut to line up correctly in a pre-drilled bolt. Seems like test fitting the nut and bolt in their actual application would be the only reliable way to mark and drill the bolt for correct location once tightened down.
Left arm
@AlbanyCountyFasteners
Do the cotter pins go all in the whole you know how there is long & shorter side, do both go into the hole?
Yes. Both need to wrap around the castle nut, as shown in the video.
Yes sir... Adding the lube to the side of the drill bit really helped out a lot... Oh well at least the drill bit will spin easy through the hole that the tip drilled without oil
Thank you for your feedback.
It's a split pin and you should have been orientated the pin a further 90 degrees. The general convention is to only bend one leg of the pin back.
Not necessarily, when doing a balljoint castellated nut, you may certainly want to do it this way, as the likelyhood of debris such as mud, grass, ice, snow etc etc deforming the pin and touching the CV joint boot thereby compromising the boot is much much less. Basically as long as you have a properly sized pin in there and its secured against falling out and doesn't interfere with any other parts is all good.
@@gmctech nonsense, they come from the factory fitted as per the previous post, it is incorrect to fit them as per video
wrong it is a cotter key. look it up on google
Hello where can I purchase some castle nuts from?
The Link is in the description, but you can find them here as well: www.albanycountyfasteners.com/Castle-Nuts-s/413.htm
When the application is smaller and not dangerous, you can also simply use locknuts
Indeed! The smallest castle nut we carry is a #10, so any applications that use smaller screws would need an alternative locknut.
I have one question if you were going to drill through just two cuts on the opposite side (for the castle nut)
what's the point in having the nut cut at 6 points ??
Normally, you are dealing with a thread that already has the hole for the pin. You tighten the nut to the appropriate torque, stopping at the nearest cutouts.
In this demo, access is 360 degrees. In real life it is never usually so. Having torqued the nut, the multiple cutouts give you a chance to access the thread at a cutout, with a drill.
Great example
nice
I suppose for cars etc that would be an ok way to fit a split pin,but on aircraft that just would not do.
what alternative would they use on a aircraft?
@@RiskyRabbit They use wire locking
@@RiskyRabbit They would further bend the end of the pin inward into the slot of the nut.
To prevent loosning pin that would vibrating and damange other component around it.
Someone plz tell me that what those six slots in nut are used for..?
Hi Ritesh,
The slots in the nut are used in conjunction with a cotter pin to provide a locking mechanism. Once, a bolt is installed, the castle nut is spun onto the bolt. Then a hole is drilled in one of the slots until it comes out on the other side. Once the hole is made, a cotter pin is slid through the hole and bent around the nut. The pin acts as a locking device which prevents the nut from spinning off.
Aye thanks mate
You're welcome! Thank you for your feedback.
Is a cotter pin supposed to have resistance going into the hole or loose fitting and goes in easy?
You should be able to insert with your fingers and should not be loose but just snug going in. Make sure the nut is aligned with the stud hole and not off center. Otherwise you will have resistance.
Albany County Fasteners Is it ok to back off a castle nut a smidge to align with the hole so the cotter pin goes in easier?
Yes back off to align the holes.
Albany County Fasteners could you tell me what size pin I'd need for M16/16mm castle nut?
We would recommend a 4mm or 4.5mm cotter pin for an M16 Castle Nut.
Join both bolts together into one then it becomes huge
Been driving with no cotter pin for some time now. How lucky am I?
Amazing
the bolt im tighting the nut onto isnt long enought to wrap it on the screw itself
Position the short split down the nut and the long split over the top of the nut and bolt end.
1/8 inch, 3/16 inch drill..., damn it US use metric units.
Which dia of driil bit to use
Any formula
The drill bit diameter should be 1/16" bigger than the diameter of the cotter pin. The cotter pin should be an appropriate size to fit in between the sections of a castle or slotted nut. There is no simple formula that we are aware of to determine accurate sizes. You may be able to find bolts with holes already drilled into them for this purpose as well.
2:50 YOU'RE WELCOME.
Super
Thank you for your feedback!
What kind of drill bit did you use please?
We use Norseman brand Drill Bits: www.albanycountyfasteners.com/Norseman-Drill-Bits-Fractional-Sizes-p/1052-334.htm
@@AlbanyCountyFasteners thank you
That is incorrect. The head of the pin should be parallel to the fastener inserted between into a cavity of the nut - not sticking out. Then with the short leg of the pin pulled over the top of the bolt, the other leg down over the side of the nut.
Not in all cases. In an application like a castle nut on a boat propeller shaft, the shaft extends beyond the nut and pulling either leg over the end of the 'bolt' is impossible.
What kind of drill bit was used?
We use Norseman brand Drill Bits: www.albanycountyfasteners.com/Norseman-Drill-Bits-Fractional-Sizes-p/1052-334.htm
V.good
Can you go without cotter pins? Is it safe?
No, the cotter pin is there for a back up in case the nut loosens and tries to come off, then the cotter pin stops it. On things like tie rods or other suspension parts on a car the cotter pin could be the difference between completely losing your steering or being able to pull off the road in time.
yeah maaan
Thank you for your feedback!
Ok, I don't have castle nuts, just regular nuts, do I do it the same way, or should I go through the nut. Seems like going through the nut would weaken the nut and the bolt. But not going through the nut, and the nut will loesen and start putting screw tension on the cotter pin....
Go get a castle nut.
Not a thing wrong with going through the nut and installing a roll pin..
Toyota needs to watch this...they burry the head on everything.
You don't strike an automatic center punch!!! You push the movable end inward until the center punch releases and create the punch mark by itself!!!
That is a split pin. Cotter pin is found i.e. on a bicycle crank shaft.....
That's what a cotter pin is in the UK. In the US, they are the same thing. One of many weird naming quirks in the fastener industry!
I get half way through and my drill bits will not cut anymore
Give the Norseman brand drill bits I've linked you in previous comments a try. I'd also double check the method you are using to drill. Are you applying lubricant and sufficient force like Bob is in the video? Give it a shot and let us know how it goes.
@@AlbanyCountyFasteners yes and thank you ill have to try these
Naanu aaromalu adhinu....
That was a split pin, not a cotter pin.
Cotter Pin is the US term for Split Pins. There is another fastener known as a cotter pin, or crank cotter pin, that is wedge shaped in design. In the industry, many terms are interchanged and commonly in the US, the type of fastener we use in this video is referred to as a cotter pin. We apologize for the confusion.
@@AlbanyCountyFasteners Thank you for the information
Incorrect
Not a cotter pin it's a split pin, you have fitted it incorrectly, the head of the split pin fits in the castelation, the long leg is bent over the top of the bolt and the other cut off,
That is not how you secure a pin in a castle nut 100% wrong
It is not a cotter pin 🤦♂️ it’s a split pin, cotter not COTTON pin and it’s a completely different fastener with a completely different function or purpose... this is bad information 🙈