Reading ETKA hardware #s

[Marc Swanson]

> Just trying to get some hardware from the local nut/bolt shops instead of
> $1/$2 a piece from the dealers.

Do yourself a favor:  replace with Stainless Steel!


> Someone posted a while back an explanation of the fiche/etka numbering
> system for hardware dimensions, but I can't find it. (It's for suspension
> rebuild, BTW.) Well, it was Mike Hopton, but I couldn't find the answer.
>
> So, for instance:
>
> N 102 065 01  Hex bolt through hub assy (BM12x1.5x76)
> 12mm dia, 1.5 thread pitch, 76mm long?

sounds right.  Sometimes it gets confusing because if a bolt has a shoulder 
one of the dimensions could be referring to the shoulder length.  In those 
cases I usually just physically measure the damn thing :-)


> N 011 445 7   Hex bolt (M10x45x20)
> 10mm dia, 45mm long, 2.0 pitch?

yep


> N 011 531 10  Washer (A13x24x2.5)
> 13mm center hole dia, 24mm outer dia, 2.5mm thick???

Don't know.  


> N 102 951 01  Hex nut, self locking (M10)
> 10mm dia... pitch (1.0?)??

whenever they don't list the pitch it usually means it is "coarse" thread.  
There are standard course thread sizes depeding on the bolt/nut diameter.  A 
competent fastener place will know what you are talking about if you ask for 
coarse thread.


> N 040 183 5   Hex nut, self locking (M14x1.5)
> 14mm dia, 1.5 pitch?

yes.



Hope that helps!

-Marc-
87 4ktq (w/loads of stainless hardware)
88 90q (w/loads of rusty hardware)