What is with the "one use nuts"?

Just put an stb on my car and torqued to 26 ft/lb.

Checked the manual to verify torque spec and it says that W520112 (the strut mount nut) is one use.

If it's an issue, which it probably not, why don't the mfgr of struts, stbs etc include these with the parts?

 

1 word lawyers, everyone is afraid of being sued.

At only 26ftlbs, I'd say you could use that multiple times. IMO

 

Don't even worry about it.

 

I've reused the top and bottom strut bolts multiple times with no issues and no worries.

 

I put some blue loctite when installing my STB as recommended by Roush, no issues so far. On my last Mustang I had reused the nuts and had no problems until I sold it a year later.

 

A lot of the fasteners the automakers are using these days come with loc-tite already applied. Using them more than once reduces the effect of the loc-tite. So if you apply your own loc-tite you're fine. Now some bolts are stretch to yield and those really should be used once. But those are rare like connecting rod bolts.

 

Thanks for the tip guys.

Checked the torque and the nuts loosened up slightly. Retorqued but I'll need to find the Blue Loctite.

 

replaced some head gaskets on a 302 several years ago .. directions said use new head bolts .. i didn`t .. car still runs fine ..