Just saw this thread, and wondered why no one mentioned....there is NO ft/lb torque wrench out there that will give you an accurate lock on "9.6 ft/lbs"
So the whole converson thing is meaningless...
Get the right tool for the job....in/lb torque wrench or don't bother , just use a cresent wrench or vice grips and give 'er a good "snug"....
Well you figure 9.6 is a bit more than 9.5, so if you can find 9.5, turn it up a touch.
You have no idea how many times I had to use a crescent wrench to get out a metric bolt or nut because I didn't have a wrench in my set big enough
I can accuratly lock in 10ft/lbs on mine, but i dont trust it any less than that.
If you have a good torque wrench, you can take it in to most auto parts stores and have it calibrated. I have a snap-on torque wrench, that clicks in the middle when you reach the right torque. My friend's dad gave it to me and I've used it ever since. But when I snapped a head bolt off an 18hp Briggs opposed, when set at the right torque, I figured somethin' aint right. Took it in, and problem solved. They said it was off about 10ft/lbs.
I hate guestimating those type of things without a torque wrench. You wonder if it's not tight enough, or too tight, or when it's gonna unexpectedly snap on you.