[Double Venom]

OK,
Most of us know that a grade 5 is not as strong as a grade 8, BUT, 8's are more for vertical pull/torque and not for shear or horizontal torque.

In question, a (2" x 1/2), bolt at the head, which would would give more strength mounting a shoulder belt? (Bolt is threaded in approximately 2"s.)

DV