I'm installing my crawford z HFC's, i got bolts from city mill, and the damn things stripped!!!! y would they do that, it wasn't even much torque. what kine or where do i get some stronger bolts?

 

You could try Lowe's first.

 

Hawaii Nuts and Bolts. But you need to provide them the bolt type, measurement and pitch.

Why dont you use the ones that came with the set?? Either that or just buy another set from Infiniti?? Shouldnt be that expensive....even so it would save you time and frustration wouldnt it??

 

i both the cats used and they only came with 4 bolts, and i need like 4 more. i think. idk if i'm somehow suppose to use the OEM ones, there stuck in the old cats. is it a certain kind of bolt that won't strip? like do they maximum torque specs or something?

 

I have used the OEM bolts for my pipes...and so far *knocks on wood* they have held up.

 

+1 on Hawaii Nut & Bolt. They are out in Mapunapuna. Grade 5 bolts should be perfectly adequate for your purposes.

Just be careful if you are trying to replace another bolt on your car that's got a structural purpose. If you ever do, make sure you replace with a bolt in kind since changing graded bolts with different bolts is not a good idea.

 

+2 Hawaii nuts & bolts.

 

thanks guys, i got from home depot, after i got relized that part with no thread was too much, and found that city mill has a better selection of grade 8 bolts. but like twice as much. YAY I'M DONE WITH MY INSTALL!!!