Circuit Sports Studs
 

I bought rear s14 extended circuit sports studs from enjuku and they don't seem to be the right ones? I emailed them already but they said they are the correct ones and they are supposed to have less teeth. Is that true? I don't want to mess up the hubs if I try to install these.
http://img6.imageshack.us/img6/8703/img0542im.jpg
Left one is the OEM rear s14 stud and the right one is the circuit sport s14 rear stud.

I've bought the circuit sports ones as well & they look like that too.

you bought cheap studs, what do you expect?
my advice: sell/throw those away and get some ARPs

just got 50mm front and rear s14 ichiba studs, went in with no issues at all, well once I had them seated I did have issue pulling rotor off so I put a nut on each stud and lightly taped them so they were straight, mounted up the wheels and torqued em... good to go.