Steel rings...20-25 in. lbs.
Aluminum rings...15-20 in. lbs.
Thats 5 lbs. over factory recommendations on both types...but 15 in. lbs. ain't much...I've never been able to get myself to trust it....so I go to 20 in. lbs. even on aluminum.
For the nuts or screws that secure the rings to the bases...
35-45 in. lbs (depending on thread type)
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