That's a very bad rule then. 1/2-20 is the size and pitch. 6 full turns is slightly more than a 1/4 of an inch or about .300" and that's not comfy.
Sport cage bolt to wheel well - opinions
- Thread starter deleted
- Start date
Or, like I posted already, stick your head under and take a peek at it. If you can see threads, you're golden. If not, fix it. Why are we guessing?
100% agree. I actually don't see it from a manufacturer, but guess where I do see it:
And again, if we don't know the pitch, then we don't know what 6-8 turns gives us for engagement. 1 1/4-12 gives us 12 threads per inch, 6 turns is a half inch and that's not gonna work. I would guess for lug nuts in 1/2-20, I'd want at least 10 to get a 1/2" of engagement given what we do to our tires offroad. It is a bit more than a common nut will give us but not by much. Or I'm just being cautious having been around a few folks that lost wheels on the highway.
A tire/wheel which may or may not still be laying in a field in Colorado off of I-70 may or may not have contributed to my current day concerns about fastener safety.
and this right here is the bottom line. If the bolt is fully engaged, gtg.
I think a big part of why this forum is because mrblaine doesn't let anyone get away with dropping answers in threads because its what a bunch of other people on the internet said. requiring empirical or at least logical evidence that the solution is in fact correct and helpful.
also, re: wheel spacer install instructions, this is in the instructions from the site I bought my adapter/spacers from:
I thought they had thread pitch on the sae studs but I guess they are assuming "standard" pitches for the sae sizes.
Hard to go wrong doing it that way.
Logic, critical thinking and a smidgen of common sense go a long way toward helping folk understand the why of things. If the why was understood even a tiny bit, no one would ever say that 6 turns is a recommendation without a qualifier. I hope at some point the poor guy I offended so much realizes that it wasn't so much his error I was picking on as I was Mac for liking it. Don't encourage him Mac, accuracy is a good thing.
That said, who ever did this guide below, needs to explain what rule their math is following. That and the jump from the 1/2" torque value when it goes to 9/16 is monstrous for only a 1/16" increase in diameter.
mystery to me, especially since 9/16" is so close to 14mm (0.551" vs 0.5625") I only cared about what they wanted me to torque my 1/2" lugs to, as well as the thread engagement, which made it abundantly clear that the shorter pilot point studs that came with my axles, while great for being able to install or remove without pulling the axle shaft out, were short by a few threads for full engagement of the lug nuts (i think i had 5.5 turns. Longer studs got it to where it needed to be, which was coincidentally enough to run threads through the whole nut.
That chart is strange. Typically a fine thread fastener will have a higher torque value in the same grade due to a slightly larger root diameter at the threads than the coarse version. They don't make that distinction with their 14mm stuff and as you said, 14mm and 9/16 are practically interchangeable but have dramatically different torque values. If I knew a value for 9/16" wheel studs, I'd certainly have used it on 14mm studs. It would be nice to know if I'd have made a mistake by doing so.
Similar threads
