Changing my wheel today and realized that not all the bolts are the same? can I use the smaller ones if they have about 4/5 turns ? if not who sells the longer ones?Click to view attachment

The shorter studs are correct for the steel wheels, and the longer ones are used to attach the alloy wheels.

Thanks my friend...now to go get some long ones.

Georgerud is right. Bruce stone usually has a set. If you buy repros, make sure they are the right ones.

Got 4 sets for my Mahle wheels on my 76 here:

Airhead Parts

Currently $5.50 each. They fit fine.

I got the airhead long ones for my Fuchs 4 bolts.

They seemed to work fine, but they are not the $10(used) or $20(new) bolts that are official Porsche brand. Are they less safe or just cheaper but safe? I wanna save money but not die an early death due to four bolts coming off at the wrong time.