Descriptive statistics for some structural features of sticky spiral to radius connections (SS-R’s). SS-R’s were 
rather variable with respect to these features, as indicated by the coefficients of variation. Note the differences 
in sleeve length on the radius at the different sides of the junction and the differences in thread thickness for 
the radius and SS. Thread thickness was measured at both sides of the junction. 
1971] 
Jackson — Web of A raneus 
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