Patent ID: 7731466

Claim:
A joined assembly comprising: a first member having a first aperture extending therethrough; a second member having a second aperture; and a bolt extending through said first aperture and at least partially into said second aperture, said bolt having a helically extending external thread thereon, said bolt axially loading said first and second members and retaining said first and second members together, and said thread including: a crest; a root; and first and second sides opposite one another extending between said crest and said root, each of said first and second sides having a first portion extending from said crest toward said root and a second portion extending from said first portion toward said root, said first and second portions extending toward said root in different orientations relative to said thread, wherein said first portion of said first side has a flank angle of a first value and said first portion of said second side has a flank angle of a second value less than said first value, each of said first portions extending from outside of a pitch diameter of said thread to inside said pitch diameter.