You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
Torque base/receiver
- Thread starter Thud
- Start date
From Brownells Benchtalk publication:
For the whole issue with other torque related information at the end, it is here.
"We recently obtained some ring and base screw specs from Leupold: base screws 14 in/lbs, ring screws, 15-17 in/lbs, and 45 in/lbs on the windage screw, 65 in/lbs on the cross bolt for the Mk IV ring. Previously, they told us that base screws with 6 or more threads of engagement would require 22 in/lbs, 6 or less 12 in/lbs."
For the whole issue with other torque related information at the end, it is here.
Harry Bonar
New member
tight
Sirs;
I hate to admit this but I don't own an inch pound torque wrench!
I just always tightened mount screws "tight" and the lightly "rapped" them with a solid wrench and gave another twinge and called it done (rapping the head forms the head perfectly to the counterbore in your base.)
Harry B.
Sirs;
I hate to admit this but I don't own an inch pound torque wrench!
I just always tightened mount screws "tight" and the lightly "rapped" them with a solid wrench and gave another twinge and called it done (rapping the head forms the head perfectly to the counterbore in your base.)
Harry B.
I admit I do the same, except I usually have a light brass hammer in place of the wrench. The only time I ever applied a torque wrench was to a Choate stock screw that had a higher-than-average torque rating employing hardened stock screws.
A touch of blue Loctite also helps compensate for torque underestimates made by feel. But I figured he wanted a literal answer.
Incidentally, with a countersunk screw hole, the rapping technique tends to produce centering as well as good contact. Between the two, the Loctite is often unnecessary. I use it anyway because it partly serves as a screw lubricant while it is still wet. A friend of mine who once worked in stress analysis for the military told me the Army had carefully studied whether or not vehicle wheel lug nuts with oil on them were actually more likely to come off, as common wisdom suggests, spontaneously? It turns out that if the oil is on them at the time they are tightened, it is actually less likely they will fall off. The lubrication enables them to be tightened more completely by a given torque.
A touch of blue Loctite also helps compensate for torque underestimates made by feel. But I figured he wanted a literal answer.
Incidentally, with a countersunk screw hole, the rapping technique tends to produce centering as well as good contact. Between the two, the Loctite is often unnecessary. I use it anyway because it partly serves as a screw lubricant while it is still wet. A friend of mine who once worked in stress analysis for the military told me the Army had carefully studied whether or not vehicle wheel lug nuts with oil on them were actually more likely to come off, as common wisdom suggests, spontaneously? It turns out that if the oil is on them at the time they are tightened, it is actually less likely they will fall off. The lubrication enables them to be tightened more completely by a given torque.
Harry Bonar
New member
tight
Sirs;
Great idea - the oil - I use it on aluminum ring screws.
Nick, I meant to say hammer.
Harry B.
Sirs;
Great idea - the oil - I use it on aluminum ring screws.
Nick, I meant to say hammer.
Harry B.