How big is it? It is a poly drive screw

 

nope. It is for ultra high torque applications.

 

I found this link. I thought it would be interesting for those looking for the weird and obscure fastener head.

http://www.instructables.com/id/When...s-So-Much-Mor/

 

If this is a C2 ABS pump, I have a perfectly working used one off a 1992 C2. $200 plus shipping.

-Keith (817) 706-7678

 

Olcha911, I may take you up on that offer. I have one that I picked up from Oklahoma Foreign that they said was working when pulled, but I won't know for sure for another couple of weeks when I get my calipers painted red and SS brake lines installed.

But, either way, I'm going to see how far I can get into this ABS pump.

 

It looks like this guy

What number is printed on the 'bolts'? perhaps the E#?



Makes you wonder when the ABS pump rebuild experts are like, "ah no, we're not going to even try"

Wear eye protection

 

That's a poly drive socket, not a torx. What's the dimension of the outside diameter of the tip of the "spokes". Would I see this on my C2? Is it visible on the frontside , or do I have to remove the pump? Not at home right now so can't check on this.

 

It is not an external it's an internal Polydrive.

 

It looks to have a letter "E" embossed on it. In the center, there is an "St".

The measurement between the longest part of the splines is 25mm.