Spotted something interesting - anti-vibration washer
02GF74 - 13/9/07 at 09:05 AM
not seen these before:
from RS, M3 to M20
Nordlock® Anti-vibration Washers
are designed to prevent the loosening of bolted assemblies due to vibration.
Used in pairs, their operation depends on surface cam angles which are greater than the thread helix angle of the bolts with which they are used.
* Suitable for use at all vibrational frequencies and amplitudes, with shock or static loads
* Unaffected by temperatures or lubricants
Re-usable
* Can be used with all HT bolts up to 12.9 grade
* Yellow zinc chromated steel finish
Fatgadget - 13/9/07 at 09:30 AM
Check out the video. http://www.nord-lock.com/default.asp?url=51.16.37
RazMan - 13/9/07 at 09:32 AM
I have seen these before and apparently they really do work.
Avoneer - 13/9/07 at 11:04 AM
Yeah, that vid is cool.
But where can you buy them and hoe dear are they?
Pat...
Fatgadget - 13/9/07 at 11:40 AM
NORD-LOCK Ltd.
Office 4a, Aspire Business Centre
Ordnance Road, Tidworth WILTS, SP9 7QD
Tel: + 44 (0)198 084 7129
Fax: + 44 (0)198 084 7674
Email: enquiries@nord-lock.co.uk
Website: www.nord-lock.co.uk
NS Dev - 13/9/07 at 11:56 AM
They are great, and do work very well.
Normal spring washers are more touble than they are worth, usually breaking and probably cause more loose bolts than they prevent.
norlock washers on the other hand are brill!
02GF74 - 13/9/07 at 01:19 PM
quote:
Originally posted by Avoneer
But where can you buy them and how dear are they?
RS sell them, box of 50, so presumabley 25 pairs.
M3 9.49
M4 9.55
M5 9.55
M6 10.25
M8 10.85
M10 14.29
+ VAT.
(about 20 p each 
)
MikeR - 13/9/07 at 01:31 PM
watched the vid - that is cool.
donut - 13/9/07 at 02:34 PM
Had some on my Indy and yes they are superb.
locoboy - 13/9/07 at 03:14 PM
One of my Curtain sided trailers at work has them on as wheel nuts.
JB - 14/9/07 at 04:19 PM
quote:
Originally posted by NS Dev
They are great, and do work very well.
Normal spring washers are more touble than they are worth, usually breaking and probably cause more loose bolts than they prevent.
norlock washers on the other hand are brill!
Normal spring washers are awful. I have been removing them from my old cars for years and will not fit them.
thomas4age - 16/9/07 at 12:57 AM
Been using those for years, I have a brother that's working in a large machinery construction company and alwas provides lunchboxes full of bolts
washers and nordlock rings.... 
grtz Thomas
PS when using M10 with nordlich don't be surprized if the spanner brakes clean in half these are really really tight!