What type of screws are that?

[JJEH]

Anyone have seen it before? http://www.yenko.net/ubbthreads/images/graemlins/dunno.gif

Was found in a 1982 Chevy C10...

http://up.picr.de/2365254.jpg

[mockingbird812]

Jochen

Those are <font color="red">Rauchen Verboten</font> bolts. http://www.yenko.net/ubbthreads/images/graemlins/grin.gif

http://img.photobucket.com/albums/v697/mockingbird812/sYc%20site/RauchenVerboten.jpg

[ORIGLS6]

http://www.yenko.net/ubbthreads/images/graemlins/hmmm.gif Looks like "SS", but in Germany that may not indicate 'Super Sport'. http://www.yenko.net/ubbthreads/images/graemlins/blush.gif

Those didn't happen to come from a WW II tank did they? http://www.yenko.net/ubbthreads/images/graemlins/eek.gif


http://www.yenko.net/ubbthreads/images/graemlins/wink.gif

[JJEH]

http://www.yenko.net/ubbthreads/images/graemlins/haha.gif http://www.yenko.net/ubbthreads/images/graemlins/haha.gif http://www.yenko.net/ubbthreads/images/graemlins/haha.gif http://www.yenko.net/ubbthreads/images/graemlins/biggthumpup.gif http://www.yenko.net/ubbthreads/images/graemlins/beers.gif

But i was thinking about "expansion screws"... http://www.yenko.net/ubbthreads/images/graemlins/confused.gif

[JJEH]

Ok... we´ve got it...

You can see 3 lines. That´s the strength limit.

And the SS is the Manufacturer http://www.yenko.net/ubbthreads/images/graemlins/grin.gif

schrauben-normen.de/amerikanisch (http://www.schrauben-normen.de/amerikanisch.html)

[rubbinisracing]

The 3 radial lines on the head indictate a SAE J-429 grade of 5.1. You're correct about the SS being the manufacturers head mark. The IFI or Industrial Fastener Institute logs those markings and sells the list to members. I have one somewhere but can find it.