I took a whole bulldozer apart, 10 grade 8 bolts in the whole thing in specialty connections. The bolts in a factory box aint much better than 2, they really keep it from sliding around.
I read that and others lke it, 2 points. All this only means a pinch of **** if the connection is marginal or engineered, other wise there is a high margin of safety, if its plenty strong enough then it doesn't matter and second no bolt should really be installed dry.
The engineers of old understood this, the old snap torque wrench manual says, all torque values are for clean lightly oiled threads, they simply stick before providing proper tension. Look at motors manual for torque specs for engines, says the same thing.
On a NC thread 40% of the torque is use to overcome thread friction at best, never know where this number is on a dry bolt. Adam C on here is engineer , he and I disagree about the need for a snap F80 ratchet but this we agree completely on. People doing common general work are not dealing with connection that have this fine line engineering cept for some specialty components. Almost all general engine bolts are 5 and work fine even with rudimentary tightening. I do agree with the guy about getting them tight enough, we see some failures due to that as well as wheels come loose from stuck threads when installed, yes it quits turning but not tight and hasn't provided the tension to hold the wheel on.
Similar to dry threads on a common C clamp, poor tension, little spray and it works so much better.
