TransAmGT

I have a harness bar/camera mount. It is 1.79" in diameter and 5.625" in circumference. And its .064" thick made with quality STEEL. Would it be ok to use a harness on this?

Tintin

If it is anchored ok, you will die from the G's it would take to break that pipe.. Use it....

ghoffman

That is a really big "if", most harness bars fail in that regard. The end conditions are one of the most important things in any structure, it makes a really big difference.

TransAmGT

Well it will be anchored like most harness bars....in the stock seat belt mounts using grade 8 hardware

davidfarmer

that is thinner wall than minimum roll bar thickness by 30%, but as above, the likelihood of it actually breaking is small.

ghoffman

Like most??? there are many differences in the end conditions. It is not just the fasteners, although there is no such thing as a "grade 8" metric fastener, (see chart on link below), it is about the sheet metal ends that matter.
http://hardbarusa.com/Fastener%20Grades.xls

TransAmGT

Here are some pics of the ends...they are 1/8" thick

67 fastback

mine is twice that wall thickness and has an extra hole on each side (with a corisponding threaded hole in the car to avoid the bar from rotating)