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HomeAircraftHelicopterMain Discussion › interesting video on Lock washers...
01-24-2018 04:31 PM  5 months agoPost 1
RM3

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Killeen, Texas - USA

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Watch at YouTube

showing a preference will only get you into trouble, 90% of everything is crap...

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01-24-2018 05:59 PM  5 months agoPost 2
wrongler

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Brewerton, New York

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Pretty interesting!

Bill Whittaker

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01-24-2018 08:40 PM  5 months agoPost 3
Four Stroker

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Atlanta

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McMaster-Carr has some info on more types or washers:

https://www.mcmaster.com/#standard-washers/

Click on lock washers.

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01-25-2018 04:17 AM  5 months agoPost 4
Gearhead

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Vt

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pretty cool, but it damages the surface

Jim
Buzz Buzz Buzz

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01-25-2018 11:41 AM  4 months agoPost 5
Eury

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Dover NH

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Nord locks are great. I use them on a few mufflers that I could never get to stay tight. Never an issue after nord locks.

Nick Crego

Citizen #0168

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01-25-2018 02:50 PM  4 months agoPost 6
old nitroman

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Naples florida

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I used them on heavy equipment, auto use also install on engine headers.

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

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01-25-2018 02:57 PM  4 months agoPost 7
GyroFreak

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Orlando Florida ...28N 81W

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Wish I had known about them when my gasser muffler kept falling off.

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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01-25-2018 03:13 PM  4 months agoPost 8
Four Stroker

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Atlanta

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Yeah, Metric are available in M3, M4, M5. I could replace all of my double nutted muffler installations. Loctite and JB Weld and Nylon locknuts melt at mufflers.

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01-25-2018 09:13 PM  4 months agoPost 9
2LTime

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Walworth,NY

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I use nord locks extensively at work. They work extremely well. They make every other locking washer I've used seem useless. OS sells them for engine mounting in a 3mm size.

If you can't learn to do it well, learn to enjoy doing it badly.

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01-26-2018 03:43 AM  4 months agoPost 10
InvertedDude

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USA

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RM3
Good stuff!! Gonna look into this for my projects!

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01-26-2018 01:54 PM  4 months agoPost 11
RM3

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Killeen, Texas - USA

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same here... I had heard of them before. but not until I saw the video did I understand how they worked AND the fact that they make them down to M3 and M4 size which is what our Helis predominantly use. Same thing for me usually the Muffler...

showing a preference will only get you into trouble, 90% of everything is crap...

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01-26-2018 02:14 PM  4 months agoPost 12
gwright

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Champaign Il

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Used them for engine and mufflers since the early 90's. Don't anymore as i'm all electric (but probably should in a few places). Microfasteners has had them for 25+ years, packed in sets of 10 for modelers. They call them "dynalock" I remember first seeing them at the microfasteners booth at the toledo show, musta been around 1990. https://www.microfasteners.com/sear...&keep_https=yes
As others have posted, they really are as good as the video suggests. I wouldn't suggest putting them on the stainless screwz that some people like or you may pop a head off a bolt since they have to actually compress and give that satisfying "snap" when you remove them.

Gary Wright

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01-26-2018 02:18 PM  4 months agoPost 13
gwright

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Champaign Il

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3mm,3.5mm,4mm,5mm,6mm

Gary Wright

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01-27-2018 12:19 PM  4 months agoPost 14
Four Stroker

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Atlanta

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Gary;

How does a Nord-Lock differ from a Bellville Spring washer - after installing ? Looks identical until you want to remove it. Same spring steel serrated top and bottom ?

Come in M2, M2.5, M3, M4 at McMaster-Carr.

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01-27-2018 01:28 PM  4 months agoPost 15
Four Stroker

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Atlanta

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Not to beat a dead horse which I often do BUT the Nord-Lock M3 will not fit my YS50/Hatori since it is too large of a diameter. On the other hand the serrated spring washers will fit:

McMaster:Belleville Spring Lock Washers for Socket Head Screws

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01-27-2018 02:00 PM  4 months agoPost 16
eyeflyhelis

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charlotte nc

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man imagine being on that train and those nuts come loose

only you have the power to make no difference!

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01-27-2018 03:05 PM  4 months agoPost 17
gwright

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Champaign Il

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Four Stroker
Gary;

How does a Nord-Lock differ from a Bellville Spring washer - after installing ? Looks identical until you want to remove it. Same spring steel serrated top and bottom ?

Come in M2, M2.5, M3, M4 at McMaster-Carr.
When you go to remove it (or vibration tries to remove it), it actually tightens at first till the little ramps disengage, so that first 1/3~1/2 turn or so makes it hold tighter before the little ramps snap over each other. other lock washers including bellville will lessen the force right from the start rather than tightening a bit before loosening. It's an amazing difference as the video shows above.

Gary Wright

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01-27-2018 11:46 PM  4 months agoPost 18
TMoore

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Cookeville, TN

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I use them on my Tractor and the implements because John Deere goes cheap on fasteners.

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